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n (1)鎖(device used with a key to fasten sth)[C]：break a～open 砸開一把鎖;fasten/pick a～把鎖鎖上/撬開;open a～with a key 用鑰匙開鎖;Does the key fit the～?這把鑰匙能開這把鎖嗎?a burglar-alarm/safety/spring/Yale～一把防盜警報/保險/彈簧/彈簧鎖;turn a key in a～在鎖眼里轉(zhuǎn)動鑰匙;

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

(3)槍機(part of a gun that makes it fire)[C]：When the～jams a rifle fails to go off. 保險栓卡住時，槍打不響。

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

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燒毀了。

under lock and key 妥善鎖藏，嚴密監(jiān)禁著：keep one's money under～and key 把錢鎖好;The criminal is safely under～and key. 那個罪犯被嚴密地監(jiān)禁。

→′lock-′gate n 閘門;′lock-keeper/′lock-master n 船閘管理員;′lock-nut n 防松螺母;′locksmith n 鎖匠;

v (1)鎖(好，上，藏)(fasten or be come fastened with a lock)[T+n，I]：～a door/drawer/suitcase/bike 鎖門/抽屜/皮箱/自行車;～one's jewels in the safe 把珠寶鎖進保險箱里;The safe was securely～ed. 保險柜被牢牢地鎖上了。The door～s automatically/doesn't～. 這門會自動鎖上/鎖不上。have a secret safely～ed in one's breast/heart (fig) 將秘密深藏心底;〖反〗unlock;

(2)(使)固定(卡住，連在一起)(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 牙關緊閉;～the carriages onto the engine with this special hook 用這個特殊掛鉤把車廂與車頭接牢;be～ed in a fight/in a mortal combat(fig) 打得難解難分/在你死我活地交戰(zhàn);He～ed his arm in hers. 他挽起她的手臂。The wheels～ed and the car skidded. 車輪卡住了，汽車直打滑。The parts～into each other. 各部件相互緊密銜接。Her teeth～ed together in anger. 她氣得咬牙切齒。Two cars～ed together in passing. 兩輛汽車在錯車時卡住了。

(3)緊緊擁抱(embrace tightly)[T+n]：～a child in one's arms 緊緊抱住孩子;She～ed the child to her breast. 她把孩子緊緊地抱在懷里。

(4)(使)船過船閘((cause) to pass through a lock)[T+n，I]：～a ship up/down 使船通過船閘向上/下游駛?cè)?The ship～ed into the new canal. 船通過船閘開進新運河。

lock away (v adv) 1)鎖起來(vt)：～away the jewellery 把珠寶鎖好; 2)把(犯人、精神病人)關押起來(vt)：～away the dangerous criminals 把危險的罪犯關押起來;

lock in/out (v adv)鎖(關)在里/外面(vt)：～oneself in 把自己關在屋里;The poor dog has been～ed in all day. 這只可憐的狗已被關在里面整整一天了。She～ed him out. 她把他關在門外。

lock onto (v prep)跟蹤目標(vt)：The moving weapon takes aim by itself and～s onto its target until the right time to destroy it. 這種移動武器能自動瞄準，自動跟蹤目標，直至在適當?shù)臅r候?qū)⑵浯輾А?/p>

lock up (v adv) 1)鎖好門窗(vt & vi)～up a house 鎖好房子的門窗;People usually～up before going to bed at night. 人們通常在晚上睡覺前把門窗鎖好。2)鎖藏好(vt)：～these papers up for safety 為安全起見把這些文件鎖起來;3)把資金鎖死/套牢在某處(vt)：He had most of the money from the profitable years～ed up in the building and expansion program. 他多年賺來的錢大部分被套死在建筑和擴建項目上，無法換成現(xiàn)金。4)同lock away 2);

→′lockable adj 可上鎖的;′locker n 小櫥柜;′locker-room n 更衣室;′lock-up n 拘留所