吃透英语课本，提升在校竞争力
n. 小行星
复数：asteroids
Look at the movies that we see all the time. It's easy to imagine the end of the world. An asteroid destroying all life and so on.
瞧瞧那些我们一直在看的电影，要想像世界末日那是很容易的事，比如一个小行星毁灭了所有生命之类的。
He was an early proponent of the theory that life on Earth may have come from Mars in rocks ejected by asteroid and comet impacts.
他是这项理论早期的支持者：地球生命也许来自火星，通过小行星和彗星冲撞而由岩石喷射而出。
Astronomers have detected an asteroid not far from Earth, moving in the same orbit around the Sun.
天文学家在距离地球不远处发现一颗与地球绕日轨道相同的小行星。
Moving on through the asteroid belt we enter the realms of the gas giant planets: Jupiter, Saturn, Uranus and Neptune, all of which dwarf the Earth.
穿过小行星带继续前进，我们进入了气体巨行星区域：木星、土星、天王星、海王星，所有这些都使地球看起来像个侏儒。
The asteroid passed close to Earth.
小行星掠过地球。
The asteroid is massive.
那颗小行星非常巨大。
asteroid belt
小行星带
adj.星状的
stellated
astroid
n.[天]小行星；[无脊椎]海盘车；小游星
planetoid
sunstar
