screw up (screwing,screwed,screws)

• 1.  

  PHRASAL VERB（动词词组） If you screw up your eyes or your face, you tighten your eye or face muscles, for example, because you are in pain or because the light is too bright. (因痛苦、光太强等) 锁起 (眼睛、脸)

  例：

  She had screwed up her eyes, as if she found the sunshine too bright.

  她已眯起眼睛，似乎她发现阳光太强。

• 2.  

  PHRASAL VERB（动词词组） If you screw up a piece of paper, you squeeze it tightly so that it becomes very creased and no longer flat, usually when you are throwing it away. 把 (纸片) 揉成团

  例：

  He would start writing to his family and would screw the letter up in frustration.

  他一次次开始给家里写信，又一次次懊恼地把信揉成团。

• 3.  

  PHRASAL VERB（动词词组） To screw something up, or to screw up, means to cause something to fail or be spoiled. 弄糟; 破坏 [非正式]

  例：

  You can't open the window because it screws up the air conditioning.

  你不能开窗，因为那样会破坏空调。