as light as a feather

as light as a feather
轻如羽毛
2个as是做什么的?

as是作比喻用.
· His face is as black as coal.
他面黑如煤炭.
· I am not as tall as he is.
我和他不一样高.
· It seemed to be as big as a house.
它看上去和一幢房子一样大.
· He thought he could walk as quickly as his friend,but couldn't.
他认为他能和他朋友走得一样快,但他不行.
· I get up just as early as he does.
我和他起得一样早.
· as cold as ice
象冰一样冷
· as cool as a cucumber
泰然自若
· as good as gold
象金子那么纯正
· as happy as a lark
象百灵鸟一样快乐

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