苦心孤诣

kǔ xīn gū yì

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释义

  1. 1. to make painstaking efforts (idiom); after much trouble
  2. 2. to work hard at sth

苦心孤诣 的构成词

心
xīn

heart

苦
kǔ

bitter

苦心
kǔ xīn

painstaking effort

孤
gū

lone

诣
yì

to go (to visit a superior)