pearl

For her anniversary, he gave her a string of genuine saltwater pearls harvested from Japan.

(Chinese) 为了纪念日，他送给她一串产自日本的正宗海水珍珠。

The diver found a rare black pearl hidden inside a large oyster at the bottom of the bay.

(Chinese) 潜水员在海湾底部的一个大牡蛎里发现了一颗罕见的黑珍珠。