Tāmen jiéhūn qī nián le, zhènghǎo yùshàng qīniánzhīyǎng.
They've been married seven years and hit the seven-year itch right on schedule.
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culture
A calque of the English phrase, which was popularized by the 1955 Billy Wilder film 'The Seven Year Itch' starring Marilyn Monroe. The phrase carries this sense; it is not a classical chengyu and is absent from 新华成语词典.
