Anthracolitization
煤化作用
🗣️ 情景例句
Why don't you go to your room, Mom, and get some sleep.
为什么不到你的房间去？妈妈， 去睡一会儿。
I did Math this morning.
我今天早上做算术。
Let's go to the first island.
我们到第一个岛上去吧。