1. 凉快的，凉爽的；冷色的　 fairly cold; pleasant cold; (of colours) suggesting coolness
2. 冷静的，镇定的　 calm; unexcited
3. 冷漠的；厚颜无耻的　 not as friendly as usual; calmly bold or impudent
4. 令人愉快的，棒的　 pleasant; very good
5. A 整整的　 exact

　～ head　冷静的头脑
　～ place　凉爽的地方
　keep ～　保持凉爽；保持冷静
　remain ～　保持凉爽；保持冷静
　stay ～　保持凉爽；保持冷静
　comfortably ～　令人舒适的凉快
　delightedly ～　令人舒适的凉快
　moderately ～　令人舒适的凉快
　really ～　的确很凉爽
　terribly ～　极其冷淡
　～ as a cucumber　非常镇静，泰然自若
　～ in the face of danger　在危险面前能保持镇定
　～ to　对…冷淡的
　～ to the idea　对这个想法不热心
　～ towards　对…冷淡的

　A cool breeze brushed his face, ruffling his hair.　一阵凉风迎面拂来，吹乱了他的头发。
　Warm air is going up, heavy cool air moves in to take the place of it.　热空气上升时，大量的冷空气填充了它的位置。
　She smoothed the lines of worry away with her cool fingers.　她用凉爽的手指把她由于担忧而产生的皱纹抚平。
　The occasion calls for a cool head.　在这种情况下需要有冷静的头脑。
　You should have seen the cool way she took my radio without even asking.　你没瞧见她那满不在乎的样子，连问也不问就把我的收音机拿走了。
　The car cost a cool twenty thousand.　这辆汽车价值足足两万元。
　It's late summer, soon the days will be cooler.　夏末了，很快天气就将更凉爽。
　The climate over the period was moderate to cool.　在那段时间里气候是从温和到凉爽。
　I think that it will be rather cool today.　我猜想今天天气会很凉快。
　Metal contracts as it becomes cool.　金属冷却时体积缩小。
　His manner was very cool.　他态度很冷淡。
　Her guy is real cool.　她的男朋友真帅。
　I found them cool to the idea.　我发现他们对这个主意不感兴趣。

 ♣ as cool as a cucumber
1. 非常凉爽 very cold
　Sitting under the shade of this tree, I am as cool as a cucumber on this hot day.　坐在这树阴底下，就是这样的热天我也感到非常凉爽。
2. 泰然自若 calm
　He kept as cool as a cucumber as the newspaper reporters all shouted questions at him at once.　当新闻记者们一直同时向他提出问题时，他一直保持冷静沉着。
 ♣ keep a cool head
　保持冷静　remain calm
　Your job is dangerous, you have to keep a cool head in case you hurt yourself.　你的工作有危险性，你必须保持冷静的头脑，以免伤害自己。
　It's a distinct advantage around here to keep a cool head when things begin to go wrong.　事情开始出差错时，保持清醒的头脑是这里的一个显著优点。
 ♣ keep cool
　〔说明〕 keep cool通常不用于进行体。
1. 保持凉爽；保持不热 remain cold; prevent from becoming too warm

　I keep cool by staying in the shade and not moving much.　由于我呆在树阴下，不多走动，所以还不热。
　How do you keep so cool in such hot weather? 　这么热的天，你身上怎么还是凉凉的呢?

　Suitable clothing also helps to keep you cool.　适当的衣服也能使你感到凉快。
　Housewives used to keep milk cool by covering the bottle with a stone pot.　过去家庭主妇们常用石钵罩住奶瓶，防止牛奶变热。
2. 〈非正〉保持冷静 remain calm; refuse to be come excited, afraid, etc.

　One of Hal's great strengths is the ability to keep cool when things start to go wrong.　哈尔最大的优点之一就是，出问题时他能保持沉着、冷静。

　Keep your head cool.　请冷静些。

 ♣ cool, chilly, cold
　参见cold条。

　vt. & vi.使变凉；冷却 make cool; become cool

　～ one's heels　久等
　～ sb's temper　缓和某人的怒气
　～ the boiled water　使开水冷却
　gradually ～　逐渐变凉
　～ down　冷却，变凉，镇定下来
　～ down an angry man　使发怒者平静下来
　～ off　使凉；杀掉
　～ off one's passion　使某人的热情消失
　～ off toward a person　疏远某人
　～ to　使冷却到…
　～ to proper temperature　使冷却到适当的温度
　～ to room temperature　使冷却到室温

　Let your tea cool a little before you drink it.　让茶凉一凉再喝。
　Has his anger cooled yet?　他息怒了没有?
　By that time her enthusiasm had cooled.　到那时她的热情已经冷了下来。
　Cool the soup before freezing it.　冷冻之前要把汤放凉。
　The rain has cooled the air.　雨使空气变凉了。
　The steam is therefore cooled, and it condenses back to water.　蒸汽因而得到冷却，并凝结成水。
　He was always cooled in the face of danger.　他面临危险时总能保持镇定。

 ♣ cool down　(v.+adv.)
1. （使）变凉 (cause to) become cool
　Her passion for her teacher has cooled down.　她对她老师的热恋已经冷却下来了。
2. 冷静下来 become calmer or less angry
　Cool down; there's no need to lose your temper over such a trivial matter.　冷静些，没必要为区区小事发脾气。
　I shall let him cool down before discussing the subject.　在讨论这个题目之前，我应该让他冷静下来。
　I thought you'd never cool down after what Harold said to you.　我本来以为哈罗德告诉你那些事后，你绝不会漠然置之的。
　Her friendship for me has cooled down.　她对我的友情已渐冷淡。
　What he said cooled me down.　他的话使我平静了一些。
　Try to cool yourself down a bit before you say anything.　你稍许冷静一下再讲话吧。
 ♣ cool it　(v.+pron.)
　冷静下来　calm down
　Cool it!Don't get so excited!　静一静吧！别那么激动！
　Stop fighting, you boys!Now cool it!　孩子们，不要打了！冷静些！
 ♣ cool off　(v.+adv.)
　变凉　become cool
　Thank heavens, it's cooled off a little.　谢天谢地，天气总算凉快一点儿了。
　Come on, have some ice tea and cool off.　来，喝点冰茶，凉快一下。
　His affection for her gradually cooled off.　他对她的爱情渐渐淡薄了。

1. S 凉爽　 a temperature that is pleasantly cold
2. S 镇静，平静　 calm

　blow one's ～　无法自制，沉不住气
　enjoy the ～　乘凉
　lose one's ～　无法自制，沉不住气
　the evening ～　晚间的凉快
　the morning ～　早晨的凉快
　～ of the shade　树下的阴凉处

　I like the cool of the evening in summer.　我喜欢夏日夜晚的凉爽。
　The city's population prepared to flee heat for the relative cool of the rivers.　该市居民准备逃到天气较为凉爽的江河流域避暑。
　In the cool of the evening, the whole family went out for a walk.　乘着夜晚的凉爽，全家人出去散步。

 ♣ keep〔wear〕 one's cool
　保持冷静　remain calm
　I try to keep my cool even when the people around me are hurling insults at each other.　即使我周围的人互相辱骂，我也力图使自己保持冷静。
　If you keep your cool you won't fail.　如果你保持镇定，你就不会失败了。
　Nobody could wear his cool when he visited the refugee camp.　访问难民营的人不可能无动于衷。
 ♣ lose one's cool
　〈非正〉失去冷静；发脾气 lose one's calmness or temper
　〔说明〕 lose one's cool不用于被动结构。
　Although the group was in danger from a threatened avalanche, their guide never lost his cool.　尽管这伙人面临着雪崩的危险，但他们的向导仍不失常态。
　Their employer seemed calm during the discussion, but he lost his cool when he heard their final demand for a pay increase.　在讨论时他们的老板显得很冷静，但当他听到他们提出加工资的最后要求时，他沉不住气了。

　［同义词］ adj. cold, calm, collected, composed, quiet v. chill; calm, moderate, quiet
　［反义词］ adj. heated, hot, warm, excited, hysterical, overwrought v. heat, warm, agitate, excite
　［词源］　中古英语col<古英语col（冷，凉）