by any chance

基本解释

If by any chance you want to cancel this trip,please notify us in writting at least one month in advance.
万一你想取消这次旅行，请至少提前一个月书面通知我.
If we share the district with the poor, what should we do if by any chance they cannot afford the property costs or the heating bills?
假如和"穷人"住在一起，万一他们交不起物业费、暖气费，难道我们也跟着受牵连？
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But if there should by any chance happen to be a woman who is single at seven and twenty, I should not think Colonel Brandon's being thirty-five any objection to his marrying HER.
不过，万一有个女人到了二十七岁还是独身，我看布兰登上校若是想要娶她为妻，三十五岁总不该成为障碍吧。
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So, if any of you doesn't want to be, by chance, seen on the Internet, then sit out of range of the camera.
如果你们不想要，意外地，出现在网上的话，那么就坐在摄像机拍摄的范围外。
麻省理工公开课 - 固态化学导论课程节选

Did the three of them, by any chance, ask the President to do any pledging on his own?
WHITEHOUSE: Press Briefing
Would this by any chance constitute a populist reaction?
ECONOMIST: Letters