hóng shuǐ tāo tāo
widespread flooding (idiom)
wǒ men sǐ hòu jiāng huì hóng shuǐ tāo tiān
Après nous, le Déluge
after us, the deluge
hóng shuǐ měng shòu
lit. severe floods and fierce beasts (idiom)
fig. great scourges
extremely dangerous or threatening things