n (1)锁(device used with a key to fasten sth)[C]：break a～open 砸开一把锁;fasten/pick a～把锁锁上/撬开;open a～with a key 用钥匙开锁;Does the key fit the～?这把钥匙能开这把锁吗?a burglar-alarm/safety/spring/Yale～一把防盗警报/保险/弹簧/弹簧锁;turn a key in a～在锁眼里转动钥匙;

(2)船(水)闸(part of a canal with gates to control the flow of water and allow boats to pass)[C]：The ship passed through the～. 船通过了船闸。

(3)枪机(part of a gun that makes it fire)[C]：When the～jams a rifle fails to go off. 保险栓卡住时，枪打不响。

(4)(摔跤)扭扯(tight hold in wrestling，etc)[C]：have the opponent's arm in a～揪着对手的胳膊;

lock，stock and barrel 全部地，完全地：The fire destroyed the house，～，stock and barrel. 大火把那所房子全部烧毁了。

under lock and key 妥善锁藏，严密监禁着：keep one's money under～and key 把钱锁好;The criminal is safely under～and key. 那个罪犯被严密地监禁。

→′lock-′gate n 闸门;′lock-keeper/′lock-master n 船闸管理员;′lock-nut n 防松螺母;′locksmith n 锁匠;

v (1)锁(好，上，藏)(fasten or be come fastened with a lock)[T+n，I]：～a door/drawer/suitcase/bike 锁门/抽屉/皮箱/自行车;～one's jewels in the safe 把珠宝锁进保险箱里;The safe was securely～ed. 保险柜被牢牢地锁上了。The door～s automatically/doesn't～. 这门会自动锁上/锁不上。have a secret safely～ed in one's breast/heart (fig) 将秘密深藏心底;〖反〗unlock;

(2)(使)固定(卡住，连在一起)(fix together firmly or jam so as to make immovable;link together)[T+n，T+n+prep，I，I+prep，I+adv]：～one's jaws tightly 牙关紧闭;～the carriages onto the engine with this special hook 用这个特殊挂钩把车厢与车头接牢;be～ed in a fight/in a mortal combat(fig) 打得难解难分/在你死我活地交战;He～ed his arm in hers. 他挽起她的手臂。The wheels～ed and the car skidded. 车轮卡住了，汽车直打滑。The parts～into each other. 各部件相互紧密衔接。Her teeth～ed together in anger. 她气得咬牙切齿。Two cars～ed together in passing. 两辆汽车在错车时卡住了。

(3)紧紧拥抱(embrace tightly)[T+n]：～a child in one's arms 紧紧抱住孩子;She～ed the child to her breast. 她把孩子紧紧地抱在怀里。

(4)(使)船过船闸((cause) to pass through a lock)[T+n，I]：～a ship up/down 使船通过船闸向上/下游驶去;The ship～ed into the new canal. 船通过船闸开进新运河。

lock away (v adv) 1)锁起来(vt)：～away the jewellery 把珠宝锁好; 2)把(犯人、精神病人)关押起来(vt)：～away the dangerous criminals 把危险的罪犯关押起来;

lock in/out (v adv)锁(关)在里/外面(vt)：～oneself in 把自己关在屋里;The poor dog has been～ed in all day. 这只可怜的狗已被关在里面整整一天了。She～ed him out. 她把他关在门外。

lock onto (v prep)跟踪目标(vt)：The moving weapon takes aim by itself and～s onto its target until the right time to destroy it. 这种移动武器能自动瞄准，自动跟踪目标，直至在适当的时候将其摧毁。

lock up (v adv) 1)锁好门窗(vt & vi)～up a house 锁好房子的门窗;People usually～up before going to bed at night. 人们通常在晚上睡觉前把门窗锁好。2)锁藏好(vt)：～these papers up for safety 为安全起见把这些文件锁起来;3)把资金锁死/套牢在某处(vt)：He had most of the money from the profitable years～ed up in the building and expansion program. 他多年赚来的钱大部分被套死在建筑和扩建项目上，无法换成现金。4)同lock away 2);

→′lockable adj 可上锁的;′locker n 小橱柜;′locker-room n 更衣室;′lock-up n 拘留所