敲门砖
qiāo mén zhuānqiaomenzhuan
- lit. a brick as a door knocker (idiom); fig. a temporary expedient
- to use sb as a stepping stone to fortune
qiāo mén zhuānqiaomenzhuan
Data from JMdict, KANJIDIC2 (EDRDG), KanjiVG, CC-CEDICT and Make Me a Hanzi. Sources and licences