这些巨大分子有七个主要类型。

These huge macromolecules are of seven major types.

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反而它们所在的巨大分子气体和尘埃云发生了碰撞，形成了剧烈的恒星形成区域。

Instead, their large clouds of molecular gas and dust do, triggering furious episodes of star formation.

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紧邻在旁的是一个巨大分子云，在照片的右下角可见。

Next door, though, lives a giant molecular cloud, visible to the right.

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