(as) cool as a cucumber
01
untroubled by hot temperature or physically difficult actions
例
He leaps up the six flights of stairs and arrives at the top as cool as a cucumber.
02
落ち着き払っている, まったく動じない
used to describe someone who is not worried at all in challenging or stressful situations
称賛的
慣用句
くだけた
例
Even during the crisis, she stayed cool as a cucumber.
危機の最中でも、彼女は落ち着き払っていた。
