用心认真思考;良很≤费心思地反复思考。
清·钱谦益《题怀麓堂诗钞》孟阳于恶疾沉痼之后,出西涯之诗疗之,曰‘此引年之药物,亦攻毒之箴砭,其用心良亦苦矣。’”
无
Learn the next connected idiom: 用心良苦 (yòng xīn liáng kǔ) → 苦不堪言 (kǔ bù kān yán)
Want to explore more random idioms? Try our 🎲 Chinese Idiom Generator