Danks
煤页岩, 黑色碳质页岩
🗣️ 情景例句
You must be Robbie.
你就是Robbie吧。
How many workshops are there in your factory?
你们厂有多少车间？
Though he was reluctant to do so at first, we eventually persuaded him to take us.
一开始，他很不愿意，但经劝说，终于同意了。