每日商务英语 第600期:脾气坏的

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crotchety ----------- 脾气坏的（形容词，非正式）

英文释义
(adjective, INFORMAL) Tending to complain about minor problems; easily annoyed; grumpy.

例句
My grandfather becomes crotchety when he's tired, and nothing seems to please him.
我祖父一累脾气就变坏，好像什么事都不能让他高兴。