stomach 除了我们常见的意思（胃）以外，作为动词还可以表示“忍受”to be able to accept an unpleasant idea or watch something unpleasant.
①He can't stomach the idea that Peter might be the next chairman.
②She found the violence in the film hard to stomach.
have no stamach for
They had no stomach for a fight.
这个词，作为形容词时，我们平常见到最多的意思是“小气的，吝啬的，卑鄙的”，但是它还有一个感情色彩完全相反的意思“You can use mean in expressions such as 'He plays a mean trumpet' and 'She mixes a mean cocktail' to indicate that someone does something extremely well.”（出色的，娴熟的）
He is a mean tennis player.
If someone is being mean, they are being unkind to another person, for example by not allowing them to do something.”（不友好的）
The little girls had locked themselves in upstairs because Mark had been mean to them.
①If you describe someone as impossible, you are annoyed that their bad behaviour or strong views make them difficult to deal with.
②An impossible situation or an impossible position is one that is very difficult to deal with.
①The woman is impossible, thought Frannie.
②The Government was now in an almost impossible position.
(informal, disapproving) a person who is considered to be boring, for example because they are old-fashioned or because they work too hard at school.
①a square meal
（a good, satisfying meal）
He looks as though he hasn't had a square meal for weeks.
②back to sqaure one
（a return to the situation you were in at the beginning of a project, task, etc., because you have made no real progress）
If this suggestion isn't accepted, we'll be back to square one.
If someone screws someone else or if two people screw, they have sex together.
①Why? So you can screw more guys?
②You screwed him, and now I am.
screw作名词时的本义是“螺丝钉”，除此之外，还可以表示“性交伴侣”（a partner in sex）,拓展两个俚语：
①have a screw loose 举止略有异常，行为古怪
②put the screws on sb 胁迫，逼迫
作为动词时，一个比较常见的意思是“拧上去”（to be attached by screwing）
①The bulb should just screw into the socket.
②The lid simply screws on.
①screw up one's courage 鼓起勇气，相当于“pluck up one's courage”
②screw you/him 去他妈的（swearing words 美剧常见短语）
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