24 hours
二十四小时都在监视他
He is under surveillance around the clock.
— 杀人回忆 (2003)
二十四小时都开着呢
It's open 24 hours a day.
— 喜剧之王 (1999)
他们告诉我男的是个送货的女的是家二十四小时店的售货员
They told me the man was a delivery driver and the woman was a clerk at a 24-hour convenience store.
— Suzhou River (2000)