Leonardite
风化褐煤
🗣️ 情景例句
Don't rush, take your time.
别急急忙忙的，慢慢来。
They won't listen, so don't waste your breath telling them.
他们听不进去，不必和他们多费口舌了。
What seems to be the problem.
什么样的问题呢？