后宫佳丽三千人家照样干
[hòu gōng jiā lì sān qiān rén jiā zhào yàng gān]
The term '三千佳丽'(Three thousand beauties) originates from history that emperors have numerous concubines. The rest part can mean no matter how many wives someone has, one still needs to do what he should. But in modern usage, it could imply doing something even in difficult or unfair situation