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

So, we just have to keep improving our regulation and trying to make a deal with all of the problems as they come up.

因此,我们更该完善监管,我们应该想个应对问题的万全之策

耶鲁公开课 - 金融市场课程节选

I mean we haven't, we don't really have a second version which is constantly... So I guess for most of last school year I just worked on scaling and kind of trying to make it keep up with the increasing load and trying to make it so that we can expand more, adding more schools.

说实话，我们从来没有,第二个版本。,我记得，在上一学年大部分时间里,我都在致力于扩大网站规模,这样是为了应对,不断增长的访问量,我试着完成目标，这样就能吸引更多学校。

斯坦福公开课 - 扎克伯格谈Facebook创业过程课程节选

In contrast, the Soviet Union went into an economic death spiral trying to keep up.

FORBES: Fact and Commnent

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