a hard but delicate, shiny, white substance made by heating a special type of clay to a high temperature, used to make cups, plates, decorations, etc.

a porcelain dish 瓷碟

The tea cups are (made of) porcelain. 茶杯是瓷制的。

cups, plates, and decorations, etc. made of porcelain

He had a fine collection of Meissen porcelain. 他收藏了很多精美的迈森瓷器。