Danks
煤页岩, 黑色碳质页岩
🗣️ 情景例句
That's a neat idea.
这是个好主意。
Not necessarily.
不一定啦！
Fortunately we found some that was still dry and carried it back to the cave.
幸好，我们找到了一些干木柴，并把木柴抱回岩洞。