•My library books are a week overdue.我借图书馆的书过期一个星期了。

•The baby is two weeks overdue (= The baby was expected to be born two weeks ago).已经超过预产期两周了。

•Changes to the tax system are long overdue.税收制度早该改革了。

•She feels she's overdue for promotion.她觉得她早该被提升。