1. C 大头针　 a short thin piece of metal that looks like a small nail, used for fastening together pieces of cloth, paper, etc.
2. C 饰针　 a quite short thin piece of metal, pointed at one end and with a decoration at the other
3. C 锁，钉，插头，闩　 peg of wood or metal for various special purposes
4. C 保险针，保险栓　 clip on a hand grenade that stops it from exploding
5. P 〈俚〉腿　 legs

　care ～　在乎
　put in ～　别上别针
　stick ～ into sb　激励某人，使某人生气
　stick in ～　别上别针
　rolling ～　擀面杖
　straight ～　直针
　wooden ～　木针
　bob ～　小发夹
　breast ～　胸饰别针
　drawing ～　图钉
　hair ～　发针
　hat ～　帽子饰针
　safety ～　安全别针
　scarf ～　围巾别针
　school ～　校徽
　tie ～　领带别针
　in the ～ of health　极为健康
　head of a ～　针头
　the point of a ～　针尖
　on ～s and needles　如坐针毡

　The dressmaker used a pin to fasten the pattern to the cloth.　裁缝用大头针把样式别在布料上。
　She fastened her coat with a pin.　她用别针扣紧她的衣服。
　He's quick on his pins.　他两条腿跑得快。

 ♣ as clean〔neat〕 as a new pin
　非常清洁，整齐　very clean; neat
　She kept her house as clean as a new pin.　她把屋子收拾得干干净净。
　Their house is as neat as a new pin.　他们的屋子干干净净。
 ♣ for two pins
　〈口〉理由很简单　 for the slightest reason
　If he says something like that to me again, for two pins I'll hit him!　如果他再对我说那些话，毫无疑问我要揍他！
　He laughed at me. For two pins I could have hit him in the face.　他嘲笑我，我恨不得打他两个耳光。
 ♣ not care〔give〕 a pin〔two pins〕
　毫不介意　not care at all
　He doesn't care a pin for her.　他对她一点也不关心。
　I don't care two pins whether she comes or not.　她来不来，我不在乎。
 ♣ on pins and needles
　坐立不安，如坐针毡　anxious; nervous
　Many famous actors are on pins and needles before the curtain opens for a play.　在帷幕拉开前，许多著名的演员感到坐立不安。
　He was on pins and needles while he was answering questions—he was clearly worried that I would find out something that he didn't want me to know.　他在回答我的问题时焦虑不安——他分明在担心我会发觉他有事情隐瞒我。
 ♣ pins and needles
　刺痛，发麻　tingling in one's extremities
　Terror made him catch his breath; pins and needles surged in his fingers.　恐惧使他屏住呼吸，连手指都感到发麻。
 ♣ you can hear a pin drop
　非常安静　it is very quiet
　It was so still you could have heard a pin drop.　这是那样的寂静，连一根针落地的声音你都可能听到。
　Like all the children mine can be very noisy but you can hear a pin drop when I ask if anybody wants to go to bed.　就像所有的孩子一样，我的孩子也可能非常吵闹，但当我问他们是否有人要去睡觉时，他们就会非常安静。

1. vt.把…别住，把…钉住　 fasten or join with a pin or pins
2. vt.压住，使不能动　 keep in one position, especially by weight from above

　～ hopes　寄托希望
　～ one's faith　坚决相信
　～ firmly　牢固地别起
　～ mercilessly　无情地钉住
　～ relentlessly　残酷地钉住
　～ tidily　整齐地钉
　～ down　迫使
　～ sb down to the ground　把某人压倒在地
　～ on　别〔钉〕起来
　～ together　别在一起
　～ up　钉住，用针别住
　～ up the hair　把头发夹住
　～ sb against the wall　把某人按在墙上
　～ beneath the car　压在车底下
　～ on one's coat　别在上衣上
　～ sb to a promise　要某人遵守诺言
　～ sb under sth　把某人压在某物底下

　She had pinned a black wild rose in her hair.　她头上别了一朵黑色的野玫瑰。
　The policeman pinned the thief's arms behind him.　警察把小偷的双臂反剪在背后。

 ♣ pin against　(v.+prep.)
　把…按〔钉〕在…上　trap; hold (sth/sb) by force next to (sth)
　Pinning his arms against his sides, the thieves searched his pockets.　窃贼们把他的手臂按在他身体的两侧，然后搜他的衣袋。
　They pinned him against the wall.　他们把他按到墙上。
　He was pinned against the fence by a boy twice his size. He could hardly breathe.　他被一个身材两倍于他的男孩按在篱笆上，使他喘不过气来。
 ♣ pin back　(v.+adv.)
　（用别针）向后别住〔固定住〕　fasten or hold (sth) back (with pins)
　The dog pinned its ears back to catch the faint sound.　那条狗的耳朵向后支着，倾听细微的声响。
 ♣ pin down　(v.+adv.)
1. 把…固定住；使…动弹不得 fasten or hold (sth/sb) down with pins; trap; prevent (sb) from moving
　We should use our secondary forces to pin down several enemy columns.　我们应该用助攻部队来牵制住敌人的几个纵队。
　The man was pinned down by a fallen beam.　那人被一根倒下的梁木压住了。
　We were pinned down by the enemy fire.　我们被敌人的炮火压住了。
　The soldier was pinned down in the hole because rifle bullets were flying over his head.　那个士兵被困在洞里，子弹正在他头顶乱飞。
2. 迫使…作出决定、表明意图或采取行动 force (sb) to make a decision, state his intention or take action, etc.
　Jackson says he will call a meeting, but we cannot pin him down about a date.　杰克逊说他要召开一个会议，但我们不能使他说出准确的日期。
　I won't pin you down to a particular day; just come whenever you're free.　我不想让你定下确切的日子，你什么时候有空就过来。
　If I can find the letter in which he promised to make a contribution, I'll pin him down to it.　如果我能找到他答应捐款的那封信，我一定要他履行诺言。
3. 下定论；找到或辨认出 explain the exact nature of (sth); find or recognize (sb/sth)
　I can't pin her down, but I've seen her before.　我说不清她是谁，但我曾经见过她。
　I seem to recognize the quotation, but I can't pin it down to its author.　引用的这段话我似乎见过，但记不清作者是谁了。
　The police tried to pin down the blame for the fire in the school.　警方设法弄清学校失火的责任。
　It is difficult to pin down the exact meaning of this word.　很难确定这个词的确切含义。
　There is a tune going around my head, but I can't pin it down.　我头脑中回荡着一支乐曲旋律，然而我却说不出它出自哪首曲子。
　There was a lot of noise coming from the classroom. but I couldn't pin it down to any particular group of students.　教室里传来一片哄闹声，但我很难辨出是哪些学生发出的。
　At last we were able to pin the trouble down to a fault in the machine.　最后，我们终于找到了症结所在，是机器里面出了毛病。
 ♣ pin on¹　(v.+adv.)
　钉上；别上，别起来　fasten (sth) on with a pin or pins
　When you go to the palace to receive your Military Cross, the Queen herself will pin it on.　你去皇宫接受十字勋章时，女王会亲自为你别上勋章。
　Be careful with that dress; it's only pinned on.　当心那件衣服，它只是用针别上去的。
 ♣ pin on²　(v.+prep.)
1. （用针）把…固定在…上 fasten (sth) on (sth) (with a pin or pins)
　He pinned a badge on his jacket.　他把一枚徽章别在外套上。
　She pinned the pattern on the cloth.　她用针把图样别在布料上。
　We pinned the notice on the blackboard.　我们把通知固定在黑板上。
2. 〈非正〉把（某事）归咎于（某人）；把（责任等）强加于（某人） force (sth) on (sb)
　In order to save their own skins they sought to pin the crime on an innocent person.　为了安全地逃脱，他们把罪名加在一个无辜的人身上。
　Don't try to pin the blame on me; I didn't do it.　别企图把这个责任推给我，我没干。
　The bank manager was really to blame, but he tried to pin it on a clerk.　银行经理实际上应该受到责备，但是他想把责任推到一名职员身上。
　We know that he did it, but it would be difficult to pin it on him since there is no witness.　我们知道这事是他干的，但由于没有证人，要归罪于他是困难的。
　This affair will be pinned on one of us if we are not careful.　如果我们不谨慎的话，这件事的责任会落在我们其中一个人的身上。
 ♣ pin to　(v.+prep.)
　（用针）把…固定在…上　fix, hold, or trap (sb/sth) to (sth) (with a pin or pins)
　Dad took a pin and pinned the flower to her coat.　爸爸取出一枚别针，将花别在她的外衣上。
　The tree fell, pinning him to the ground.　树倒了，把他压在地上动弹不得。
　The notice was pinned to the wall.　通知钉在墙上。
 ♣ pin together　(v.+adv.)
　别在一起　fasten (sth) together with a pin or pins
　Pin the bill together so you don't lose them.　把账单别在一起以防遗失。
　All the papers are pinned together.　所有的文件都别在一起了。
 ♣ pin under　(v.+prep.)
　把…压在〔挤在〕…下　trap (usually sb) beneath (sth)
　The train derailed and a number of passengers were pinned under the carriages.　火车出了轨，一些旅客被压在车厢下。
　The boy's leg was pinned under the car after the accident.　事故后那男孩的腿被压在车下动弹不得。
　The car was pinned under a fallen tree.　汽车被倒下的树压住了。
 ♣ pin up　(v.+adv.)
1. 用针固定住；别住 fasten (sth) with a pin or pins so that it stays up
　She began pinning up her hair.　她开始用发夹把头发夹起来。
2. 把…钉在大家看得见的地方 fasten (sth such as a picture) in public view
　The teachers usually pin up the best work on the board.　老师通常把最好的作业钉在展示板上。
 ♣ pin with　(v.+prep.)
　用…把…别住　fasten (sth) usually with a pin
　She pinned the gown at the neck with a safety pin.　她在领子那儿用一枚别针把睡衣别住。

　［同义词］ n. bolt, clip, nail, screw v. affix, attach, fasten, fix, join, restrain
　［词源］　中古英语pyn<古法语pinn<中古高地德语pfinne（钉）