1.He discovered an unusual meteorite.

1.他发现了一块奇异石。

2.Small meteorites have left impact craters all over the planet’s surface.

2.这个行表面布满了小块石留击坑。

3.One theory about the existence of extraterrestrial life rests on the presence of carbon compounds in meteorites.

3.地球外存在命理论是基于存在碳化合物质这一事实。

4.If you look over the element ratios we measured, you might conclude that our comet particles look more like chondritic porous IDPs than CI chondrite meteorites.

4.如果你查看我们测定元素比率，你将得出结论——我们彗颗粒看去更接近多孔球粒石IDPs而不是CI球粒石。