screw1/skru; skruː/n [C] a thin pointed piece of metal that you push and turn to fasten pieces of wood, metal etc together [→ nail] 螺丝﹐螺(丝)钉
screw2v 1 [T] to fasten one thing to another, using a screw 用螺钉固定: screw sth into/onto/to sth Screw the shelf to the wall. 用螺丝把架子固定在墙上。2 [I,T] to fasten or close something by twisting it around until it is tight [ unscrew ] 拧紧﹐旋紧: screw sth on/onto sth Don’t forget to screw the lid on. 别忘了把盖子拧上。3 also 又作 screw up [T] to twist paper or cloth into a small round shape 把〔纸或布〕揉成一团: She screwed the letter up and flung it in the bin. 她把信揉成一团丢进垃圾箱里。 screw up phr v 1 informal to spoil something or to make a bad mistake [ mess up ] 【非正式】搞糟﹐弄乱: You’d better not screw up again! 你可别再搞砸了!screw sth up The bad weather screwed up our holiday plans. 这坏天气把我们的度假计划给弄乱了。2 screw up your eyes/face to make your eyes become narrow by changing the expression on your face 瞇起眼睛/扭歪脸