我不知道能不能和你们一起走。

I wonder if I can go with you.

youdao

你们知道，去年秋天因为我的心脏的问题，我都不能走这么远。

You know, I couldn't even walk this far last fall because of the condition of my heart.

youdao

既然你们都走过来了，我为什么不能走呢？

As both of you've done so, why shouldn't I?

youdao

The one thing you want to keep in mind though is that Hertz does not actually mean inverse seconds, it means cycles per second. So, if you're talking about a car going so many meters per second, you can't say it's going meter Hertz, you have to say meters per second.

写成5每秒，或5赫兹,你们要记住的是赫兹,并不等于秒的倒数，它是每秒的循环数，如果你们说,一辆车一秒可以走多少米,你不能说它走了米赫兹。

麻省理工公开课 - 化学原理课程节选