•I overheard a very funny conversation on the bus this morning.今天早上我坐公车时，无意中听到一段有趣的谈话。

•[+ obj + -ing verb] He overheard his daughter telling her teddy not to be so naughty.他碰巧听到女儿对她的毛绒小熊说别那么淘气。

•[+ obj + infinitive without to] We overheard them say that they didn't really like the meal.我们无意中听到他们说他们其实并不喜欢那些饭菜。

•I'm sorry, I couldn't help overhearing.很抱歉，我是碰巧听到的。