这些象牙制品非常昂贵。

These ivory products are very expensive.

象牙制品在许多国家都是非法的。

Ivory products are illegal in many countries.

我们应该保护大象，停止购买象牙制品。

We should protect elephants and stop buying ivory products.

我们必须保护树木，不要购买象牙制品。

We must save the trees and not buy things made of ivory.

她的项链是用象牙制品做的。

Her necklace is made of ivory.

这家店出售各种象牙制品。

This shop sells various ivory items.

他收藏了一些古老的象牙制品。

He has a collection of antique ivory artifacts.

在中国，象牙制品也属于禁止进出境物品之列。

In China, ivories are also listed as prohibited items of entry and exit from the country.