精益求精 ChineseDict

精 jing1 精

益 yi4 益

求 qiu2 求

精 jing1 精

to perfect sth that is already outstanding (idiom); constantly improving

Info

Wiktionary: 精益求精
MDBG: 精益求精
Examples with 精益求精 on Tatoeba
Percentile: 2 (higher is more common)
Tags: chengyu HSK6