Coalbed
煤层
🗣️ 情景例句
Is he OK?
他还好吗？
As they are in such a damaged condition, we doubt we will be able to take delivery.
由于它们残损如此严重，恐怕我们无法提货。
Because Manhattan Island is made of solid rock, it is safe to build very tall buildings.
曼合顿岛是由坚固的岩石构成的，这使得兴建大厦非常安全。