分子云是一个包含冷却星际气体和尘埃的区域，这些气体和尘埃是星系形成之后的残留物，主要由氢分子组成。
A molecular cloud is a region containing cool interstellar gas and dust left over from the formation of the galaxy and mostly contains molecular hydrogen.
泽·普赖姆闷闷不乐地开始收集星际空间的氢，用来造一颗自己的小恒星。
Unhappily, Zee Prime began collecting interstellar hydrogen out of which to build a small star of his own.
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