Epidolerite
变粒玄岩
🗣️ 情景例句
What's wrong?
什么病
No, I'm listening to the radio.
没有，我在听收音机。
The hovercraft is particularly useful in large areas with poor communications such as Africa or Australia;
气垫船在非洲、澳大利亚等交通不发达地区特别有用。