年幼的孩子不明白因果关系，所以他们可能会在摆动的秋千前奔跑。

Young children don't understand cause-and-effect, so they may run in front of moving swings.

youdao

王子既心地善良又天真无邪，所以他不明白为什么人们会如此渴望权利、财富和赞誉。

The prince is kind and innocent (天真无邪的) , so he doesn't understand why people want to have power, wealth and praises so much.

youdao

她不明白他们在说什么，所以她只是看着他们。

She didn't understand what they were saying, so she just looked at them.

youdao

And that's really neat to think about, because photons, of course, are massless particles, they have no mass, so it's neat to think about something that has no mass, but that actually does have a momentum.

而且那真的不容易想明白，因为光子，当然是无质量的粒子，它们没有质量，所以这个真的不容易想明白,一些物体没有质量，但是它们事实上确实有动量。

麻省理工公开课 - 化学原理课程节选

They are not concerned about interpretation because to them, good writing is precisely writing that's clear, writing that doesn't need to be interpreted but has precisely as its virtue its transparency of meaning.

他们不关注解读问题,因为对他们而言，一部好的作品必须清楚明白，正因为它表意清楚,所以不需要解读。

耶鲁公开课 - 文学理论导论课程节选

And here's a little trick -- and again, we promised to point -- out little tricks of the trade -- if I know I want to execute the last command I typed that started with an m, bangm will actually figure out what that command was and redo it for me so I don't have to figure it out, or you can go back in time in a terminal window.

这里有个小技巧--此外，我们许诺指出行业中的,一些小技巧-,如果我知道我想执行我写入的上一个命令,是以m开头的，！m会明白那个命令是什么,然后为我恢复上次操作,所以我不需要明白它，或者你可以回到,那个终端窗口。

哈佛公开课 - 计算机科学课程节选