高岭土是一种非常重要、用途十分广泛的非金属矿物。

Kaolin is a very important use of a very wide range of non-metallic minerals.

youdao

高岭土是一种非常重要、用途十分广泛的非金属矿物。

Kaolin is a very important use of a very wide range of non-metallic minerals.

youdao