off chance的用法和样例：
例句
- Stopped by on the off chance that they're home.
停下车看看，既使他们在家的可能性很小 - I didn't think you'd be at home, but I just called on the off chance.
我想你不会在家的，只是抱著一线希望给你打个电话。
词汇搭配
- off chance 不大会有的机会(万分...
- on the off chance 可能性小(万一某事发...
- an off chance 很少可能
