There was a fashion of "tea appreciation" in the Song dynasty, and black-glazed porcelain articles got prevalent because they could accent the whiteness of the tea.

宋代斗茶之风大盛，而黑釉瓷碗可以突显茶色之白，因此在当时十分盛行。

youdao

While the other black glazed porcelains used the lower quality porcelain clay as their raw materials for body. They are probably fired in Yuan period.

而另一部分黑釉瓷使用了质量较差的瓷土作为制胎原料，可能是元代时生产的。

youdao

The Tang dynasty Is well knows for Its trIcolored glazed pottery and black-and-whIte porcelaIn. I would lIke to know theIr artIstIc features.

唐代有著名的三彩釉陶器和青白瓷。我想知道它们的一些艺术特征。

youdao