1·Not all metals are good conductors.
所有的金属都是良导体。
2·Not tall metals are good conductors.
并非所有的金属都是良导体。
3·She knows why metals are good conductors.
所有这些金属都不是良导体。
4·We refer to copper and silver as good conductors.
我们认为铜和银是良导体。
5·The question is why metals are good conductors.
问题是为什么金属是良导体。
6·Sliver, copper and aluminium are good conductors .
银、铜和铝是良导体。
7·Metals are good conductors, silver being the best of all.
金属是良导体，而银是最好的。
8·Both copper and silver are good conductors of electricity.
铜和银都是电的良导体。
9·Such materials as copper and silver are called good conductors.
像铜和银那样的材料称之为良导体。
10·Almost all metals are good conductors, with silver being the best.
几乎所有金属都是良导体，以银为最好。