do sth on the ˈoff chanceto do sth even though you think that there is only a small possibility of it being successful侥幸一试；碰运气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。I called in at the office on the off chance that you would still be there.我上了你的办公室，想看看你是不是还在那里。 |