1. 螺(丝)钉
A screw is a metal object similar to a nail, with a raised spiral line around it. You turn a screw using a screwdriver so that it goes through two things, for example two pieces of wood, and fastens them together.
screw
e.g. Each bracket is fixed to the wall with just three screws.
每个托架只用了 3 颗螺钉固定在墙上。
2. 用螺钉固定
If you screw something somewhere or if it screws somewhere, you fix it in place by means of a screw or screws.
e.g. I had screwed the shelf on the wall myself...
我自己用螺钉把架子固定在墙上。
e.g. Screw down any loose floorboards...
用螺钉固定住所有松动的地板。
3. (盖子、配件)带螺旋的
A screw lid or fitting is one that has a raised spiral line on the inside or outside of it, so that it can be fixed in place by twisting.
e.g. ...an ordinary jam jar with a screw lid.
带螺旋盖的普通果酱罐
4. 旋紧;拧紧
If you screw something somewhere or if it screws somewhere, you fix it in place by twisting it round and round.
screw的解释
e.g. Kelly screwed the silencer onto the pistol...
凯利把消音器拧到手枪上。
e.g. Screw down the lid fairly tightly...
把盖子拧紧。
5. 把(纸等)揉成一团，拧成一团
If you screw something such as a piece of paper into a ball, you squeeze it or twist it tightly so that it is in the shape of a ball.
e.g. He screwed the paper into a ball and tossed it into the fire.
他把纸揉成一团抛进火里。