我们必须知道一些关于保护自己的建议。

We must know some advice about protecting ourselves.

youdao

面对这种现象，我们必须采取一些措施来解决它；否则，在未来它可能会造成巨大损失。

Faced with this phenomenon, we must take some measures to deal with it; otherwise, it will result in great losses in the future.

youdao

如果把睡觉和不睡觉进行比较，我们会发现睡觉后的表现更好，那么就必须承认睡眠对记忆的一些好处。

When sleep is compared with wakefulness, and performance is better after sleep, then some benefit of sleep for memory must be acknowledged.

youdao

So when you're writing a program in this language and many others, if you wanna make a comment to yourself or for other people who are reading this with their TF or fellow colleagues, you use what are called comments.

当你用这样那样的语言写程序时,为了便于自己或他人,阅读我们写的代码，我们必须得做一些注解,这就是所谓的注释。

哈佛公开课 - 计算机科学课程节选

But first we need to establish a few things about the occasion for this piece and about the genre, the literary genre of the mask in general.

但首先我们必须建立一些,关于此作品与流派，一般文学体裁《面具》的场合。

耶鲁公开课 - 弥尔顿课程节选

One group of arguments for the existence of a soul says, "We need to posit a soul in order to explain something, whether it's something everyday or something supernatural."

主张灵魂存在的一方声称,我们必须假设灵魂存在,才能解释一些,司空见惯或是超自然的现象

耶鲁公开课 - 死亡课程节选