fān shēn
to turn over (when lying)
(fig.) to free oneself
to emancipate oneself
to bring about a change of one's fortunes
dǎ fān shēn zhàng
to work hard towards a turn-around
to fight to reverse sth
xián yú fān shēn
lit. the salted fish turns over (idiom)
fig. to experience a reversal of fortune