off chance的用法和樣例：
例句
- Stopped by on the off chance that they're home.
停下車看看，既使他們在家的可能性很小 - I didn't think you'd be at home, but I just called on the off chance.
我想你不會在家的，只是抱著一線希望給你打個電話。
辭彙搭配
- off chance 不大會有的機會(萬分...
- on the off chance 可能性小(萬一某事發...
- an off chance 很少可能
