Oysters live in salty water, so they are usually found in the sea. 牡蛎生活在咸水中，所以它们通常在海里。

　　Some oysters hate dirt or dust. 一些牡蛎讨厌尘土。

　　When a bit of sand goes into an oyster shell, 一粒沙子进到牡蛎壳时，

　　the oyster gets angry and tries to protect itself. 它们会很生气，想要自卫。

　　What happens next? 那么接下来会发生什么呢？

　　The dirt becomes a pearl. 灰尘变成了珍珠。

　　Did you know that Roman emperors loved oysters? 你知道罗马皇帝喜欢牡蛎吗？

　　They loved oysters so much that they thought oysters were as valuable as gold. 他们非常喜欢牡蛎，认为它们珍贵如金。

　　In a Greek myth, the goddess of Beauty Aphrodite comes out of an oyster shell. 在希腊神话里，美丽女神阿佛洛狄忒就源于牡蛎壳。

　　These facts show how much the Greeks loved oysters. 这些事实说明了希腊人是多么喜欢牡蛎。