Danks
煤页岩, 黑色碳质页岩
🗣️ 情景例句
Do you have a job lined up after graduation?
你毕业后有工作等着你吗？
Affairs that are done by due degrees are soon ended.
事情要安步就班地做，就会很快地做完。
The following answer is subject to official confirmation.
以下的答案必须再经过正式确认才有效。