The two saleswomen were busily trying to keep up with the demand.

这两个女售货员正忙着尽力满足顾客的需求。

《柯林斯英汉双解大词典》

I probably would have continued trying to keep up with him for the rest of my high school career, but when my family moved, everything changed.

我本可以在高中生涯继续试着追赶上他，但是搬家之后一切就变了。

youdao

The elephant was trying to keep up with the fast-moving crocodile in the water and became careless.

大象试图跟上水里快速移动的鳄鱼，不再小心翼翼。

youdao

The American super-rich are trying to keep up with the Gateses, not the Joneses.

BBC: Keeping up with the Hohnses

Those are just a few of the big movements we're all trying to keep up with.

FORBES

Well you have to give them credit for trying to keep up with the marketplace.

FORBES: What's Brewing at Coinstar's Redbox?