词典释义：
not yet having arrived, happened, or been done, though after the expected time
迟到的；延误的
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reform is now overdue .改革早就该进行了。
(of a payment)not having been made, although required
（款项）逾期未付的
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the rent was nearly three months overdue .房租已逾期几乎三个月了。
(of a woman)not having had a menstrual period at the expected time
（妇女）未如期行经的
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I was already a week-and-a-half overdue .我的月经已晚了一周半了。
(of a baby)not having been born at the expected time
（婴儿）过了预产期的
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our daughter was six days overdue .我们女儿的预产期已过了六天。
(of a library book)retained longer than the period allowed
（图书馆的书）逾期未还的。
having been needed for some time
早该有的
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reform is now overdue 早就应该改革了
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critics say action is long overdue.
评论家说早就应该采取行动了。
having deserved or needed something for some time
早该得到…的 ，早该有…的
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she was overdue for some leave .她早该享受假期了。
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