有了私人赞助的额外收入，这家俱乐部才勉强维持运营。

With extra income from private sponsorship, the club is just about managing to ___keep its ___head ___above ___water.

我也开始意识到，有时她不得不像我一样苦苦挣扎才能维持生计。

I also started to realize how, at times, she had to struggle just like me to ___keep her ___head ___above ___water.

作为一名自由职业者，有些月份很艰难，但我已学会精打细算来维持生活。

As a freelancer, some months are tough, but I've learned to budget carefully to ___keep my ___head ___above ___water.