translation.en: Well, if you look at the little yellow asteroids flitting across the screen, these are the asteroids that are moving fastest, because they're closest to us, closest to Earth.
translation.zh: 请注意这些黄色的小行星， 高速从屏幕中划过， 这些是移动地最快的小行星， 因为他们离我们最近，离地球最近。