off-and-on
01
断断续续的, 间歇性的
occurring intermittently, with periods of activity followed by pauses or breaks
例子
The off-and-on rain throughout the day made it difficult to plan any outdoor activities.
整日断断续续的雨使得计划任何户外活动变得困难。
They ’ve had an off-and-on relationship for years, never staying together for long.
他们多年来一直保持着断断续续的关系，从未长久在一起。
