苦心孤诣 in English ku3 xin1 gu1 yi4 Meaning

Meanings

• to make painstaking efforts (idiomatic expression); after much trouble
• to work hard at sth

Pinyin

ku3 xin1 gu1 yi4

Literal

Literal explanation, with pronunciation and meaning of each character.

苦ku3bitter 心xin1heart 孤gu1lone 诣yi4to go (to visit a superior)