Most of the common binary molecular compounds--molecular compounds built from two elements--have at least one element from Group16or17.的翻译：Most of the common binary molecular compounds--molecular compounds built from two elements--have at least one element from Group16or17. 什么意思？中文翻译英文，英文翻译中文，怎么说？

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Most of the common binary molecular compounds - molecular compounds built from two elements - have at least one element from Group16or17.

Most of the common binary molecular compounds--molecular compounds built from two elements--have at least one element from Group16or17.

binary molecular compounds of the common Most - molecular compounds built from two elements - have at least one element from Group 16 or 17.

Most of the common binary molecular compounds--molecular compounds built from two elements--have at least one element from Group16or17.