我们现在知道没有人被击中。

We know now that no one had been hit.

youdao

当然，我们现在知道，包括地球在内的行星都围绕太阳公转，而太阳系只是宇宙的一小部分。

Of course, we now know that the planets, including Earth, revolve around the Sun, and that the solar system is only a tiny part of the universe.

youdao

我们现在知道地球不是正圆形的球体。

We now know the Earth is not a perfect sphere.

youdao

OK, so now the question is, how do we know the first place that this is a suitable reductant?

好的，现在的问题是，我们如何能知道第一步中,镁是一个合适的还原剂？

麻省理工公开课 - 固态化学导论课程节选

Now, you know with constant volume, H now it's not going to be delta H that's U straightforward to measure, it's going to be dealt u, all right.

好，现在你们知道在体积恒定的条件下，我们得到的不是Δ,我们直接测量到的是Δ,好，但这基本上也是一样的。

麻省理工公开课 - 热力学与动力学课程节选

We know now that it's caused by a related virus, called vaccinia, remember the virus that causes smallpox is called variola.

我们现在知道这病由一种相关的病毒引起,这种病毒叫牛痘病毒,想想天花病毒也被叫做牛痘病毒

耶鲁公开课 - 生物医学工程探索课程节选