意思:
adv. 一次曾經
conj. 一旦
n. 一次,一回
I've been to that nightclub once.
那家夜店我就去過一次。I met Miquela once, briefly.
我見過蜜凱拉一次,時間很短。
Just for once he arrived on time.
只有這一次他按時到了。
The water is fine once you're in!
你一旦下了水,就會覺得水裏挺舒適。
I've only been there once.
我只去過那裏一次。
She once ruled over a vast empire.
她曾統治過一個幅員遼闊的帝國。