Dictionary/苦心孤诣

苦心孤诣 苦心孤詣

kǔ xīn gū yì

ㄎㄨˇ ㄒㄧㄣ ㄍㄨ ㄧˋ
Idiom
1to make painstaking efforts (idiom); after much trouble
2to work hard at sth

Characters