敲门砖敲門磚

qiāo mén zhuān

释义

lit. a brick as a door knocker (idiom); fig. a temporary expedient; to use sb as a stepping stone to fortune

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汉字

敲qiāoto hammer, to pound, to strike高攴门méngate, door, entrance, opening丶丨砖zhuāntile, brick石专