铅是重金属。
Lead is a heavy metal.

铅因其重而常派上用场。
Lead is often used because of its weight.

这条棍子灌了铅增加了分量。
The stick had been weighted with lead.

无铅汽油的应用现正逐步推广。
The use of lead-free petrol is now being phased in.

我们的儿童是否受著空气中铅的毒害？
Are our children being poisoned by lead in the atmosphere?

铜的电阻比铅的小。
Copper has less resistance than lead.

铅会在相当低的温度下熔化。
Lead will fuse at quite a low temperature.

石墨常被用来做成铅笔。
Graphite is used in making lead pencils.