视频对话：
What? There are no rock fairies.
什么？没有什么岩石精灵。
You never know. There might be.
你怎么知道。可能会有。

本期学习词汇：
fairy
n. 仙人；小精灵；

例句：

1. I saw a fairy flying around in my dreams.
在梦里，我看见一个小精灵飞来飞去。
2. There are many stories about the nymphs in Roman fairy tales.
罗马神话中有许多关于仙女的故事。
3. In his dream, he became a fairy.
在梦中, 他变成了一个小精灵。