良苦用心 liáng kǔ yòngxīn

liáng kǔ yòngxīn set phrase to ponder earnestly; to give a lot of thought to sth
Domain: Modern Chinese 现代汉语 , Subdomain: , Concept:
Notes: (CC-CEDICT '良苦用心')

Word is mentioned most frequently in

Truncated for common words