(as) cool as a cucumber
01
untroubled by hot temperature or physically difficult actions
例子
He leaps up the six flights of stairs and arrives at the top as cool as a cucumber.
02
镇定自若, 一点不慌
used to describe someone who is not worried at all in challenging or stressful situations
褒义
习语
非正式
例子
Even during the crisis, she stayed cool as a cucumber.
即使在危机中，她也镇定自若。
