1. P 单独的；独一无二的　 apart from other persons or things; solitary; without anyone else; without anything more; unique
2. A 仅仅，唯一，只有　 only; just

　man ～　只有人类
　meat ～　光有肉
　money ～　光有钱
　time ～　光有时间
　be ～　是孤独的
　feel ～　感到孤独
　leave ～　听其自然，不干涉
　let ～　更不用说，还不算，听其自然，不干涉
　look ～　显得孤独
　seem ～　似乎是孤独的
　stand ～ in　在…方面是独一无二的
　much ～　非常孤独
　terribly ～　可怕地孤独
　very much ～　非常孤独
　～ in a place　独自在一个地方
　～ in that opinion　只有一个人持那种意见
　～ in holding that opinion　唯独一个人持有这种想法
　～ with　单独与…在一起
　～ with the moon　独自陪伴着月亮

　Cage alone knows the truth.　只有凯奇知道真相。
　I alone remained.　只有我留下来。
　You alone can do it.　只有你能做这事。
　He alone foresaw the Second World War.　他是唯一预见到要发生第二次世界大战的人。
　He alone is not responsible for it.　这件事只有他一个人毫无责任。
　One boy alone can do this work.　只需一个男孩就能做这件工作。
　The President alone has the power to appoint a member of the US cabinet.　只有总统才能有权任命美国内阁成员。
　The people, and the people alone, are the motive force in the making of world history.　人民，只有人民，才是创造世界历史的动力。
　Man alone has the gift of speech.　只有人类才有说话的天赋。
　Meat alone is not adequate food for most people.　光有肉对大多数人来说还不足够。
　Iron alone rusts.　只有铁生锈。
　That job alone will take up all your time.　单是那件工作就会占去你的全部时间。
　Pride alone prevented her from giving up.　只是自信心才使她没能放弃。
　Hard work alone isn't enough, we must use our brains, too.　光苦干还不行，我们还得动脑筋。
　Money alone can not make you happy.　光有钱不能使你幸福。
　Time alone will show who was right.　只有时间能证明到底谁对。
　The grant was awarded on merit alone.　补助金只发给有功绩者。
　Man shall not live by bread alone.　人活着不是单靠食物。
　He would be respected for that one thing alone.　仅凭那一件事他就会受到尊重。
　She did the work for money alone.　她做这工作仅仅为了钱。
　In Paris, 35 arrests were made on January 4 alone.　在巴黎，仅1月4日一天就逮捕了35人。
　I am alone.　我独居。
　He was all alone.　他单独一个人。
　I wanted to be alone.　我想单独一个人呆一会儿。
　Often she would weep when she was alone.　她一人独处时常常哭泣。
　Better to be alone than in bad company.　一人独处也比和坏朋友在一起好。
　After her husband's death she felt terribly alone.　丈夫死后，她感到可怕地孤独。
　Let's talk the matter over as soon as we are conveniently alone.　让我们单独在一起的时候再讨论这件事情吧。
　After his mother's death the boy remained quite alone.　母亲去世后，留下小男孩无人照顾。
　She was not alone at the moment.　当时不止她一个人。
　I am all alone here at present.　目前我独自一个人在这儿。
　She's always frightened when she's alone in the house.　当一个人在屋里时，她总是害怕。
　She has been alone in the world since husband died.　自丈夫死后，她一直是独自生活。
　I am not alone in this opinion.　持这种意见的不只是我一个人。
　She is alone in believing that he is innocent.　只有她一个人相信他是无辜的。
　We are not alone in thinking that it is right.　并非只有我们认为它是对的。
　He was almost alone in thinking so.　这样想的，差不多就是他一个人。
　Haas is alone in dreaming that he shall be a specialist one day.　只有哈斯一个仍在梦想，总有一天他会当上专家。
　We were not alone in thinking that our education cause will continue to forge ahead with vigour.　并非只有我们认为我们的教育事业将要继续蓬勃发展。
　I am alone with the attendant.　我单独和侍者在一起。
　It was dreadful to find oneself alone in such a place.　在这样的地方孤独一人真让人毛骨悚然。
　Finding himself alone in the room he knew he had overslept.　他发现屋里只有他一个人时，就知道自己睡过了头。

 ♣ leave〔let〕 alone
1. 不理，不管〔惹〕，不烦扰，不干涉 not bother; not meddle with; allow to be oneself
　Let me alone!　别管我！
　Let the boy alone. He's hurting nobody.　别管那个孩子，他不会伤人的。
　Leave them alone to their discussion.　别干扰他们，叫他们自己讨论吧。
　Let him alone to do that!　任他自己去做吧。
　Let my things alone!　别动我的东西。
　How can you let it alone?　你怎么能不管呢?
　Some people can never let things alone.　有些人凡事都想插手。
　She wants to think things out quietly, so we had better leave her alone.　她要安静地考虑一下，最好别打扰她。
　I'm anxious about leaving him alone in the temple.　让他一个人呆在庙里，我很担心。
　The principal is busy at his desk; you'd better leave him alone.　校长正在伏案疾书，你最好别打扰他。
　Leave the cat alone!　别惹那只猫！
　Leave that bottle alone; there is oil in it.　别碰那个瓶子，里面有油。
2. 更不用说，还不算 not to mention or say nothing of, certainly not
　〔说明〕 leave〔let〕 alone常用在否定句中。
　We can't afford a bicycle, let alone a car.　我们连自行车也买不起，更不用说汽车了。
　She can't find money for necessities, let alone such luxuries as wine and tobacco.　她连买必需品的钱都没有，哪里谈得上买烟酒之类的奢侈品呢。
　It is not all of us who are born with the gift of handling normal children, let alone those of subnormal intelligence.　并不是我们所有的人都生来就有管理正常儿童的才能，更不用说管理那些智力低于平常的儿童了。
　He doesn't even speak his own language well, let alone French.　本国语他都说不好，更不必提法语了。
　He can't add two and two, let alone do fractions.　他连二加二都不会，更不用说做分数题了。
　I couldn't afford to rent a house like that, let alone buy it.　像那样的房子过去我连租都租不起，更谈不上买了。
　I'm so sick today that I couldn't walk as far as the kitchen, let alone go to the zoo with you.　我今天病得连厨房那么远都走不动，更不用说陪你逛动物园了。
　He did not speak to me, leave alone help me.　他连话都没跟我说，更谈不上帮助我了。
　He won't even thank you, leave alone pay you.　他连谢都不谢，甭说付钱给你了。
　His cabin is uninhabitable in summer, let alone in winter.　他的小屋连夏天都不好住，更不用说在冬天住了。
 ♣ let〔leave〕 well〔enough〕 alone
　安于现状就已经行了，再搞反而会弄巧成拙了　be satisfied with conditions and not change them; do nothing else for fear of spoiling sth
　You can avoid all kinds of trouble by letting well alone.　随遇而安就能避免种种麻烦。
　If you're in doubt about whether to try to improve matters, it's usually best to leave〔let〕 well alone.　如果你拿不准是否要使事情得到改善的话，一般说来最好是听其自然。
　Last week he ruined the whole job while trying to put right a small mistake, so this time he left well alone.　上星期他想纠正一个小错误，却把整个工作弄糟了，所以这次就不画蛇添足了。
　You've persuaded your father to agree to one of your requests so I should let well alone in case he changes his mind.　你已经说服你父亲答应你的一个要求，因此我不必再插手了，以免使他改变主意。
 ♣ stand alone
　突出，杰出　be better, higher or bigger
　In the art of painting he stands alone.　他在绘画方面无与伦比。
　He stands alone as a conductor of modern symphonic music.　他是一个杰出的现代交响音乐指挥。
　She stands alone as an English teacher.　她是一位杰出的英语老师。
　Mount Qomolangma stands alone in its magnificence.　珠穆朗玛峰的宏伟是无与伦比的。

 ♣ let alone, not to mention
　参见mention条。
 ♣ leave alone, let alone
　这两个短语一般来说意思相同，可以互换。例如：
　Leave〔let〕 that bag alone. It's not yours!　别动那个包，那不是你的！
　它们之间的区别是：
1. 作“不理〔管〕而听其自然”“不烦扰”解时，多用leave alone；作“不干涉”解时，多用let alone；作“更不用说”解时， let alone比leave alone更正式。
2. leave alone可用于被动结构；而let alone不常用于被动结构。
 ♣ let alone, let well alone
　这两个短语虽然只差一个well，但含义和用法已大相径庭。前者意为“更不用说”，后者意为“适可而止”；前者用作及物动词，后者用作不及物动词。
 ♣ alone, lonely
　这两个词词形相近，但含义并不相同。其区别是：
1. alone可用作形容词，也可用作副词；lonely只能用作形容词。
2. alone是陈述一个“独自”的客观现实，而lonely则是描述一种“寂寞的”情绪体验；alone说的是“没有伴侣”，而lonely却含有“渴望伴侣”的意味；alone基本没有感情色彩，而lonely的感情色彩却很浓。例如：
　She felt lonely when she was left alone.　剩下她一人时，她感到很寂寞。
　再比较以下两句：

　再如：The few people on the street were alone and seemed lonely.街上那几个人孤零零的，显得很寂寞。
3. lonely所表示的感觉是主体所不希望的，而alone所表示的感觉虽然多数是主体所不希望的，但也可以是主体所希望的。例如：
　Now I am alone and can do more or less whatever I like.　现在我单独一个人，可以做我喜爱的事。
　There was a joy in closing the door behind the last departing guest and knowing that at last one was blessedly alone.　当最后一位客人离去后，你关上门并感到终于留下自己一个人怡然自得时，该是多么高兴啊。
4. lonely可用于地点表示偏僻，人迹罕至；而alone不能这样用。
5. lonely可用作前置定语，而alone只能作后置定语。例如：
　There's a lonely house in a lonely wood.　在人迹罕至的树林里有一座孤零零的房子。
　Riches alone cannot bring happiness.　仅仅有财富不会使人幸福。

1. alone表示的“单独”一般只指一个人，但有时也可指几个人甚至众多人的“单独”，即该群人整体而非其中单个成员处于孤立状态。用作形容词或副词时均如此。例如：
　She didn't want to be alone with a stranger.　她不愿与陌生人单独呆在一起。（本句中的alone指两个人）再如：I was left to bring up my two children alone.留下我一个人带两个孩子。（本句的alone指三个人）They were alone; so he could speak frankly.没有外人在他们旁边，所以他可以直率地讲话。（本句中的alone指几个人）
2. alone作“单独的，孤独的”解时，一般用作表语，当代英语中偶尔也有人把它用作定语或以very来修饰它。例如：
　His success drove out the terrible loss and alone feeling.　他的成就弥补了这次巨大的损失，驱散了孤单的感觉。
　She felt very alone.　她感到很孤独。
　注意这两种用法初学者不宜仿用。

1. 单独地，独自地　 without or separated from others
2. 仅，只　 only; exclusively

　go ～　单独走
　leave ～　独自离开
　walk ～　独自散步

　My father was sitting alone when I came in.　我进去时，我父亲一个人坐着。
　I can't carry on alone any longer; I'll have to get help.　我一个人再也提不动了，得有人帮助我。
　Can you lift the rock alone?　你一个人能搬起那块石头吗?
　Every morning I walk alone in the woods.　每天早晨，我一个人在林子里散步。
　This is something I can't decide alone. I'll consult with my wife about it.　这不是我自己能决定的事，我得和我妻子商量商量。
　She is now eighty, and becoming too frail to live alone.　她今年80岁了，并且身体日益如此虚弱，以致不能一人单独生活。
　Cage spent most of her time alone in the flat.　凯奇独自一人在这所大公寓里度过了她大半生的时间。
　She went on holiday alone, she's very independent.　她独自去度假，她喜欢单独行动。
　It was a definite mistake for him to have gone alone.　他独自前去是一个明显的错误。
　It was risky to walk in the filthy streets alone, murder was frequent and familiar.　单独在污秽的街上走是很冒险的，因为谋杀经常发生，对人们来说并不陌生。
　It is dangerous for a girl to go out alone at night.　一个女孩夜里单独外出是危险的。
　I felt uneasy at thought of her going home alone at that late hour.　我为她那么晚独自回家感到不安。
　It's too big a job for one man to do alone.　这工作太难，一个人干不了。
　The house stood alone on the hill.　那座房子孤零零地坐落在山顶上。
　He lived all alone.　他独自一个人生活。
　He did it all alone.　这事全是他一个人干的。
　I have to work all alone.　我不得不一个人干活。
　Mary was going to London all alone.　玛丽独自一人去伦敦。
　That fellow places himself among us all alone.　那个家伙在我们中间处于孤立地位。
　She sat all alone on the hillside.　她孤单地坐在山坡上。
　That pagoda stood on the hill all alone.　那座宝塔孤零零地立在山坡上。
　Alone, he would have been terrified.　如果是孤身一人，他会吓坏的。

 ♣ alone, by oneself
　这两者均可译为“独自地”“单独地”，其差别主要在于：
1. 从造成“独自地”原因上说， alone可以是主动的，也可以是被动的；而by oneself则是主动的，是主观上愿意把自己与他人隔绝开来而造成的。例如：

2. 从“独自地”性质上说， alone可以是正常的，也可以是不正常的；而by oneself则多是反常的，或者是出乎意料的。例如：

 ♣ alone, only
　这两个词意思相同，常常可以通用，例如：
　He knew it was impossible to accomplish it by individual effort only〔alone〕.　他知道只靠个人努力是不能完成那件工作的。
　它们之间的区别是：
1. 在句中的位置不同：alone通常要放在它所修饰的词语之后，而only却可置于其前。例如：

2. 含义上也有区别：alone表示只此一个，别无其他，相当于exclusively；而only则暗示所指的事物有所限制，相当于solely. 例如：

　第一句暗指其他农场也出售了这么多甚至更多；而第二句则暗指其他农场没有我们多。再如：

 ♣ alone, just
　这两个词都可表示“仅仅”，其区别在于：前者要放在它所修饰的词语之后，而后者却可置于其前。例如：

 ♣ 下面两个句子含义不同：

 ♣ 下面的句子有两种含义：

1. 学校正在采取有效措施来提高学生独立工作的能力。
　［误］ The university is taking effective measures to improve the students' ability to work alone.
　［正］ The university is taking effective measures to improve the students' ability to work independently.
　［析］ work alone是“单独工作”， work independently才表示“独立工作”。
2. 她不但有学识，而且有经验。
　［误］ She has not alone knowledge, but (also) experience.
　［正］ She has not only knowledge, but (also) experience.
　［析］ alone不用于not alone...but also结构。

　［同义词］ adj. isolated, lonesome, only, separate, single, singular, sole, unaccompanied, unique adv. exclusively, solely, solitarily, solo
　［反义词］ adj. aided, assisted, equaled, helped, surpassed adv. together
　［词源］古英语all+one（独一无二）