off and on
US /ɔf ænd ɑn/
UK /ɒf ænd ɒn/
副詞
斷斷續續, 時而
sometimes but not regularly or continuously
範例:
•
It rained off and on all day.
一整天都斷斷續續地下著雨。
•
They've been dating off and on for years.
他們斷斷續續地約會了好幾年。