老牛吃嫩草 [ㄌㄠˇ ㄋㄧㄡˊ ㄔ ㄋㄣˋ ㄘㄠˇ; lao3 niu2 chi1 nen4 cao3] lit. an old cow eats young grass (idiom) fig. a May-December relationship a romance where the man is significantly older than the woman ◄ ►
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