He had taken a flight to Paris on the off-chance that he might be able to meet Francesca.

他搭飞机去了巴黎，怀着遇到弗朗西丝卡的渺茫希望。

《柯林斯英汉双解大词典》

Make small change to the code on the off-chance that it might solve the problem

对程序做一些小的改动，尽管解决问题的机会极小；

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She scanned the crowd on the off chance of seeing someone she knew.

她扫视着人群，抱着一线希望看是否有熟人。

《牛津词典》

What we're watching: On the off-chance that you're not watching the big game and pre-game festivities, we decided not to take the day off on our listings.

ENGADGET: HDTV Listings for February 5, 2006 HD

"I rang them on the off-chance and they have already cleared all the snow in front of the house where the funeral is going from, " he said.

BBC: Snow closes nearly 300 schools in South Yorkshire

They will then be able to respond precisely, rather than slogging around on fruitless and demoralising patrols on the off-chance of catching a poacher up to no good.

ECONOMIST: Monitor