夤緣攀附

yin2 yuan2 pan1 fu4

to cling to the rich and powerful (idiom); to advance one's career by currying favor, social climbing

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夤緣攀附|夤缘攀附 [yín yuán pān fù] ► to cling to the rich and powerful (idiom); to advance one's career by currying favor ► social climbing