是电和热的不良导体；混合物中含有某些金属氧化物时，玻璃会呈现出不同的颜色。大多数种类的玻璃容易破碎。

A poor conductor of heat and electricity, glass takes on colours when certain metal oxides are included in the mix. Most glass Breaks easily.

youdao

怛是由于玻璃的密度较大，并且容易破碎，所以使用寿命不长。

But due to the high density of glass, and easily broken, so life is not long.

youdao

这十个旧玻璃盘子是很容易破碎的。

This old glass dish is very fragile.

youdao