lose one's cool片語KK [luz wʌnz kul] /luz wʌnz kul/發音片語1失去冷靜、發脾氣、沉不住氣口語He lost his cool when the driver cut in front of him.那輛車突然插到他前面,他一下就火了。2慌了手腳、亂了陣腳口語Even with two minutes left, she never lost her cool.就算只剩兩分鐘,她也完全沒有亂了陣腳。