beggars can't be choosers

said when you recognize that you must accept an offer or a situation because it is the only one available to you

要饭的哪能挑肥拣瘦;别无选择

I would have preferred a house of my own rather than sharing, but beggars can't be choosers, I suppose.

我更愿意独住而不是与人合住，可是我哪能挑三拣四的，是吧。

That dress wasn't exactly what I would have picked for myself, but, hey, it was free, and I'm broke right now. Beggars can't be choosers.

这条裙子不是我想给自己选的，但那是免费的，而且我现在身无分文。我也不能挑肥拣瘦。