ivory

/ˈaɪvəri/

a hard smooth ivory colored dentine that makes up most of the tusks of elephants and walruses

中文释义：象牙；象牙色

The illegal trade of ivory threatens the survival of elephants.

象牙的非法贸易威胁到大象的生存。

She wore an elegant ivory dress to the wedding.

她穿了一件优雅的象牙色连衣裙参加婚礼。