high grade clay

例句：

1. 1.The high-grade clay was used to make the pottery.
   这种高质量的黏土被用来制作陶器。
2. 2.The high-grade clay is suitable for making pottery.
   这种高质量的黏土适合制作陶器。
3. 3.The high-grade clay has a unique texture and color.
   这种高质量的黏土具有独特的质地和颜色。