shì kě rěn , shú bù kě rěn
if this can be tolerated, what cannot? (idiom)
enough is enough
是
shì
to be (followed by substantives only)
可
kě
(prefix) can; may; able to; -able
忍
rěn
to bear
，
,
孰
shú
who
不
bù
no; not so
