简体
繁體
pīnyīn
ㄅㄆㄇㄈ
kǔxīngūyì
to work hard at sth
苦心孤诣 (苦心孤詣)
to make painstaking efforts (idiom); after much trouble; to work hard at sth
Not found in HSK word list
53510th most common word in books
CC-CEDICT