亲眼看看地球是圆的。

See for yourself that the earth is round.

youdao

首先讨论太阳，然后是地球，看看地球和太阳中，具有多少旋转动能。

I will first discuss with you the sun and the earth and see how much rotational kinetic energy is stored in the earth and in the sun.

youdao

相反地，Hansen争论说，我们应该回过头去看看地球的过去以求得到更加明晰的答案。

Instead, Hansen argues that we should look to Earth's past for clearer answers.

youdao

And this is a very fast speed, of course, it's about 700 million miles per hour. So, one way to put that in perspective is to think about how long it takes for a light beam to get from earth to the moon. Does anyone have any guesses? Eight seconds, that sounds good.

当然这是一个非常快的速度，它大约是每小时7亿英里,为了更形象化，我们,看看光从地球到月球,需要多少时间，你们猜猜是多少？,8秒，猜的不错。

麻省理工公开课 - 化学原理课程节选