珍珠历来受到人们的喜爱和赞赏，名贵的珍珠可以与最尊贵的宝石相提并论。光是汉语中和珍珠有关的词汇就有很多，比如“珠圆玉润”，“玉貌珠颜”，“珠光宝气”等等等等。天然珍珠的九游官方平台产量是十分稀少的，因此人们开创了养殖珍珠的方法。下面这篇短文将为您介绍珍珠是如何养殖的。

　　About 4,000 years ago the Chinese discovered pearls in. The inside of an oysters shell is covered with a smooth shiny coating called mother-of-pearl. When an, such as a grain of sand, gets caught inside the oysters shell it secretes layers of mother-of-pearl to protect its body by coating the irritant. The coated grain of sand becomes a pearl.