冲击波形成了一个由压缩气体分子构成的圆锥体，它朝四面八方向外和向后移动，一直延伸到地面。
The shock wave forms a cone of pressurized air molecules which move outward and rearward in all directions and extend to the ground.
近期的恒星形成本身似乎由星风和超新星爆发触发，来自前代大质量恒星，清除和压缩了分子气体。
The recent star formation itself was likely triggered by winds and supernova explosions, from previous generations of massive stars, that swept up and compressed the molecular gas.
在学校，你可能学过像木头，玻璃以及水这样的物质是由原子聚集而成的，从而形成分子。
In school, you probably learned that materials like wood, glass, and water are made of atoms that stick together to make molecules.
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