under the weather
感到不舒服或生病的
口語·表達輕微不適
英文釋義
feeling sick or unwell
例句
I'm feeling a bit under the weather today, so I'll skip the party.
典故來源
源于航海術語,船員生病時被安排到甲板下避風處休息,weather指惡劣天氣。