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Definitions4 characters
fei4 jin4 xin1 si5
to rack one's brains (idiom); to take great pains to think sth through
Usage•••frequent
Pronunciations

As word

1
fei4
to rack one's brains (idiom); to take great pains to think sth through
2
jin4
to rack one's brains (idiom); to take great pains to think sth through
3
xin1
to rack one's brains (idiom); to take great pains to think sth through
4
si5
to rack one's brains (idiom); to take great pains to think sth through