Magcobar
泥浆加重剂
🗣️ 情景例句
All right, let's get down to business.
好，我们来谈正事吧。
Did you go to the circus last night?
你昨晚去看马戏了吗？
Mr. Smith knew Jack didn't look at the others because he was nervous.
史密斯先生知道杰克不敢看别人是因为紧张。