jìn xīn jìn lì
making an all-out effort (idiom); to try one's heart out
to do one's utmost
fèi jìn xīn si
to rack one's brains (idiom); to take great pains to think sth through
fèi jìn xīn jī
to rack one's brains for schemes (idiom)
to beat one's brains out
jìn xīn jié lì
to spare no effort (idiom); to do one's utmost
cháng jìn xīn suān
to experience one's full share of sorrows (idiom)
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