有时候，惰性也不是很难克服——我们可能会因为做出了一个大的改变而感到兴奋，也可能想要对我们生活的某一部分做一次彻底的检视。

Sometimes it's not difficult to overcome - we can get excited to make a big change and want to overhaul a certain part of our lives.

youdao

不过它也可能会很难很难-而且有时候，让人就是觉得有点烦心。

But it can also be very, very difficult - and, sometimes, just a little frustrating.

youdao

有时候，生活很难用语言去描述；你可能会遇到这样的情况：有时想给某人打电话，但还未拨通，你却又放下了电话，为什么？

Sometimes it's inenarrable. you would come across such a time when you want to call somebody, but finally you stop, why?

youdao

And I also want to point out, it's guaranteed pretty much you may or may not be able to see, sometimes it's hard to see that one that's getting near the UV end of our visible spectrum. So we won't worry if we can't see that.

我要指出的是，我可以保证你们,但你们可能会看不到，有时候很难看到,这个可见光谱边缘接近紫外光地方的这根谱线,所以看不到也不用担心。

麻省理工公开课 - 化学原理课程节选