off and on
斷斷續(xù)續(xù)地,有時(shí)候
口語·描述不規(guī)律或間歇性行為
英文釋義
occurring intermittently or not consistently
例句
We've been dating off and on for two years, but never seriously.
典故來源
源自19世紀(jì),指事物像開關(guān)一樣時(shí)而開啟時(shí)而關(guān)閉,形容不連續(xù)的狀態(tài)。