如果你不懂技术术语，你会掉队跟不上的。

If you don't know your technical jargon you're going to be left behind.

youdao

看见没，这就是我跟不上的地方。 你说，一只蜗牛该做些什么才能转成更高层次的生命呢？留下一道完美的粘液痕迹？

See, that's where they lose me. I mean, what would a snail have to do to move up in the lineup? Lay down a perfect trail of slime?

youdao

一般美国人的收入跟不上通货膨胀的速度。

The earnings of the average American have failed to keep pace with the rate of inflation.

《柯林斯英汉双解大词典》

One of the concerns out of the gate for students in this course, particularly those we dub less comfortable is that you're already starting off at a disadvantage.

另外一个比较关心的是,还没有入门的同学，尤其是那些有点跟不上的同学,你们的学习处于劣势。

哈佛公开课 - 计算机科学课程节选

And similarly, particularly for those less comfortable, do we offer prior to the start of each week for a new piece at what we dub a walkthrough whereby one of the teaching fellows will literally start on the first page, give you a mental framework for the week's problems and talk about the ideas that it covers, and then walk through the piece set so that you have a roadmap of sorts that you can follow.

同样，特别对于那些不熟悉编程跟不上进度的同学，每周上课前都可以预习新的知识点,一名教师从第一页开始,对于每周的问题,都给你们简历一个心理框架,并讨论它所涵盖的思想，然后了解了每个部分之后,就可以有个学习的路线图。

哈佛公开课 - 计算机科学课程节选