How is a cultured pearl produced?
珍珠是怎样养殖的？
Cultured pearls don’t have at their core a grain of sand, but instead arelittle plastic or glass beads or something that pearl farmers stick into theoyster for a year or so.
对于人工养殖的珍珠而言，它们的核心并不是沙粒，而是像小塑料珠或小玻璃珠之类的物体。 珍珠养殖者把这些小东西塞到牡蛎中，然后等上一年左右的时间。
The natural pearl is much more expensive than a cultured one.
天然珍珠比养殖的要昂贵得多。
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