瓷土

bēi zi shì yòng zuì hǎo de cí tǔ zhì chéng de

杯子是用最好的瓷土制成的。

The cups are made from the finest china clay.

cí tǔ chén diàn dài lái le jù dà de jīng jì jià zhí

瓷土沉淀带来了巨大的经济价值。

The deposits of china clay are of great economic value.