集团外语由一个非金属、碳、两个非金属等、硅和锗，和两个金属、锡、铅。

The elements of group V A include three nonmetals — nitrogen, phosphorus, and arsenic—and two metals — antimony and bismuth.

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碳族(碳，硅，锗，锡，铅)。

Carbon Group (Carbon, Silicon, Germanium, Tin, Lead).

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碳族(碳，硅，锗，锡，铅)。

Carbon Group (Carbon, Silicon, Germanium, Tin, Lead).

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