苦心孤诣 苦心孤詣
kǔ xīn gū yì
Значение
to make painstaking efforts (idiom); after much trouble; to work hard at sth
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kǔ xīn gū yì
to make painstaking efforts (idiom); after much trouble; to work hard at sth
Учить в приложении → Писать по чертам