单词
asteroid
读音
ˈæstərɔɪd
美式
英式
词根
无
释义
n. [天] 小行星；[无脊椎] 海盘车；小游星 adj. 星状的 [ 复数 asteroids ]
例句
There is an asteroid on a collision course with the Earth.
有个小行星正处于可能与地球发生碰撞的航向上。
Scientists were debating whether an asteroid was about to hit the Earth.
科学家们在争论一颗小行星是否要撞上地球。
The largest asteroid is Ceres, which is about a quarter the size of the moon.
最大的小行星是谷神星，其体积大约是月球的四分之一。
There is an asteroid on a collision course with the Earth.
有个小行星正处于可能与地球发生碰撞的航向上。
Scientists were debating whether an asteroid was about to hit the Earth.
科学家们在争论一颗小行星是否要撞上地球。
The largest asteroid is Ceres, which is about a quarter the size of the moon.
最大的小行星是谷神星，其体积大约是月球的四分之一。
强化记忆
无
看视频学发音
and had its path around the Sun determined.Although it varies from asteroid to asteroid,the paths of most asteroids can be predicted for dozens of years.
or it could be from any number of natural causes,like an asteroid collision,a gamma-ray burst or a magnetic pole reversal.
The counterweight itself could be anything,even a captured asteroid.From here, the tether could be released down through the atmosphere
This is where we are as a country.So here's another asteroid.We've all seen versions of this graph, right,
So every point in this visualization that you can seeis a real asteroid.Its orbit has been calculated from its motion across the sky.
所属分类
大学,出国,其他
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