Anthracitization
无烟煤化作用
🗣️ 情景例句
I ran into Stone at the supermarket this morning.
早上我在超级市场碰见世通了。
The snow will soon be deep enough to ski on.
雪将会很快就积到可以滑的深度了。
When is it going to be on the market?
什么时候上市啊