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off-and-on
01
occurring intermittently, with periods of activity followed by pauses or breaks
例子
The power outage was frustrating as the electricity came back on an off-and-on basis.
They’ve had an off-and-on relationship for years, never staying together for long.
Her off-and-on attendance at the gym made it hard for her to see consistent results.
The off-and-on rain throughout the day made it difficult to plan any outdoor activities.
