Ivory is an important arts and crafts materials, the "organic gem," said.

象牙是一种重要的工艺品原料，有“有机宝石”之称。

youdao

Ivory is an important arts and crafts materials, the "organic gem," said.

象牙是一种重要的工艺品原料，有“有机宝石”之称。

youdao