炉火纯青
lú huǒ chún qīng
로그인하여 이 단어를 학습 목록에 저장하세요.
정의
- 1. lit. the stove fire has turned bright green (allusion to Daoist alchemy) (idiom)
- 2. fig. (of an art, a technique etc) brought to the point of perfection