I'm set

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释义
不需要了；不了，谢谢=I'm all set
used for saying that you do not need anything, especially food, when someone offers you something；
no,thanks.

例句
Chip: I can get you free posters for your room.
Monica: Thanks, I’m set.(Friends)
齐普：我可以给你房间里弄点免费海报。
莫妮卡：谢谢，不用了。（老友记）