He's doing very well in his history classes, but he's barely getting by in math.他的历史课成绩很好，但数学成绩勉强通过。

We don't have a lot of money, but we get by.我们的钱不多，但勉强够用。

How can you get by on such a small salary?靠这点微薄的薪水你怎么过活？

We got by with a minimum of clothing when we went camping.我们去野营时仅带了最基本的衣物凑合着应付。