Meteoroid
01
流星体, 小天体
a small celestial body that becomes visible as a meteor upon entrance into the atmosphere of the earth
例子
A meteoroid is a small rocky or metallic object in outer space that is significantly smaller than an asteroid and larger than a micrometeoroid.
流星体是外太空中的一个小型岩石或金属物体，明显小于小行星，大于微流星体。
Meteoroids often originate from comets or asteroids and can range in size from tiny particles to objects several meters in diameter.
流星体通常来源于彗星或小行星，大小可以从微小颗粒到直径几米的物体不等。
词汇树
micrometeoroid
meteoroid
