n (1)螺丝(钉)(type of nail with a cross or cut into its head and a raised edge running round it that can be driven and turned into wood，etc)[C]：tighten (up)/loosen a～with a screwdriver用改锥拧紧螺丝/旋松螺丝;turn these～s to the left把这些螺丝钉向左旋;get the～s into a piece of wood把螺丝钉旋进一块木板;use the～for fixing it 用这个螺丝钉将它固定;〖同〗bolt;

(2)螺旋状物(thing that is turned like a screw)[C](常构成合成词)：tighten the～on a cider press把果汁机上的螺旋上紧;a cork～ 瓶塞钻;

(3)转动，拧(act of twisting，turn)[C]：give the lid/nut another～to make sure it doesn't come off再把盖子/螺母拧一下，确保掉不下来;

(4)螺旋桨(propeller，esp of a ship or motor boat)[C]：the ship's～船的螺旋桨;a twin-～cruiser 双螺旋桨游艇;〖同〗driver，propeller;

(5)一小纸卷(包)(small twisted piece of paper containing sth)[C](尤BrE)：a～of salt/tea/sugar/tobacco 一小包食盐/茶叶/食糖/烟(草);buy some salt in a～of paper 买一包食盐;

(6)工资，薪水(salary)[U，a～](BrE sl)：a monthly～一个月的薪水;be on/paid a good～薪水挣得不少;

have a screw loose 有些不正常(古怪)：He was a smart man but had a～loose.他长得很帅，但人有点古怪。

put the screw(s) on (sb)威逼某人做某事：The manager's putting the～s on to get him out of the shop.经理正向他施压，迫使他离店。

→′screwy adj 古怪的，异常的;′screwball n(AmE，sl)古怪的人，疯子;′screwdriver n 螺丝刀;′screwed adj 有螺钉的;′screw-topped，′screw-top adj(指罐子等)旋盖的;͵screwed-′up adj(sl)烦乱而无法处理生活问题的，搞乱的，弄糟的;

v(1)用螺丝钉固定(drive or turn round (with a screw) to tighten it)[T+n，T+n+prep(to，onto)，T+n+adv (together)]：a～ed joint 用螺丝钉固定的接缝;～the handles to the door用螺丝钉把拉手固定在门上;～the legs to the table用螺丝钉把桌子腿固定在桌子上;～the hooks on into the wall 把挂钩旋进墙内;～these two parts together/all the pieces of wood together用螺钉把这两部分/所有木板拧在一起;To～things together is to fasten them with a screw. 把物体拧在一起，就是用螺丝钉将它们固定在一起。〖同〗fasten，join;

(2)旋紧，拧动(twist or turn round to tighten it)[T+n+prep，T+n+adv，C+n+adj]：～the lid on to the jar把罐子盖旋紧;～the two pieces together把两件拧在一起;～a hook on/bulb in/nut up把挂钩/灯泡/螺母拧上去;～the vice tight把虎钳拧紧;She～ed her head right round.她把头整个扭过去。〖同〗twist，turn;

(3)拧(旋)紧(be fixed by twisting or screw-ing)[I+adv，I+prep]：I don't know if the bulb～s in or not.我不知道这灯泡是不是拧上的;Do you know whether the lid～s off or not? 你知道盖子是不是旋开的? Make sure that the hollow tubes～s together. 查一下空心管是否接上了。the bulb～ing into the socket旋进灯口(插座)的灯泡;the top～ing on to the jar 拧在罐上的盖子;

(4)欺骗(deceive or cheat sb)[T+n，T+n+prep (for)](sl)：be/get～ed 受骗了(上当了);They～ed him for three thousand.他们向他骗取了3000元。〖同〗cheat;

screw up (v adv) 1)把……揉成一团(vt)：～up the drawing/the note/the letter into a ball and threw it out of the window把画/笔记/信揉成一团，扔出窗外; 2)用螺丝固定(拧紧)(vt)：～the board up firmly to the window frame把这块木板用螺丝固定在窗户框上; 3)(因强光、疼痛等)皱紧(面孔等) (vt)： Her face～ed up as her tongue touched the bitter fruit.舌头一碰到苦味的水果，她的脸便皱起来。She～ed her nose up in disgust.她厌恶地皱起鼻子。 4)搞乱(糟)(vt)：Having the car stolen completely～up everything/up our holiday plan.汽车被盗把一切都打乱了/把我们的假日计划完全打乱了。

screw up one's courage 鼓起勇气：He～ed up his courage to ask her to marry him.他鼓起勇气向她求婚。Don't stand there;～up your courage and jump. 别站在那儿，鼓起勇气跳。

screw sth out of sth/sb 1)从某物中拧出某物：～the soapy water out of the cloth把布里的肥皂水拧干;2)逼某人交出：～some money/information out of a poor man by threats用威协的手段从可怜的人那里弄到钱/得到消息