qiān xīn wàn kǔ
to suffer untold hardships (idiom); trials and tribulations
with difficulty; after some effort
千
qiān
used in 鞦韆|秋千[qiu1 qian1]
辛
xīn
(of taste) hot or pungent
万
wàn
ten thousand
苦
kǔ
bitter
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