off-again, on-again 不斷變更
英文釋義
Uncertain; fluctuating; not firmly settled. (NOTE: also, "on-again, off-again").
例句
The date of my sister's wedding was on-again, off-again because of her future husband's frequently changing work and travel schedule.
我妹妹的結婚日總在不斷變更,因為她未來的丈夫不斷改變工作和差旅計劃。