刨根问底(英文)

摘要

Why would a meteorite[陨星]Wipe out the dinosaurs[恐龙]? If a meteorite hit the surface[表商]of the Earth.there would be a huge explosion[爆炸].Dust would fill the air,blocking out[阻碍] the sun- 1ight for a very long time. Without the Sun,vegetation [植物]would die.the plant-eat-