pocket clay

例句：

1. 1. The pocket clay has been used as a decorative material for centuries.
   口袋泥土被用作装饰材料几个世纪了。
2. 2. The artist carefully packed the pocket clay into a small box.
   艺术家小心地将口袋泥土装入一个小盒子里。
3. 3. The pocket clay was used to make pottery during ancient times.
   口袋泥土在古代用于制作陶器。