Pinyin Dictionary results for "ku xin"

苦心
painstaking effort; to take a lot of trouble; laborious at pains
苦心孤诣
to make painstaking efforts (idiom); after much trouble; to work hard at sth
苦心经营
to build up an enterprise through painstaking efforts
皇天不负苦心人
Heaven will not disappoint the person who tries (idiom). If you try hard, you're bound to succeed eventually.
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