She looks as cool as a cucumber 有什么道理?

问题描述:

She looks as cool as a cucumber 有什么道理?
为什么用黄瓜?

as cool as cucumber
泰然自若, 极为冷静
这是一个习惯用语
出处无从考究
可能是因为cucumber吃起来很冰凉吧(早期没有冰箱)