Differentials
n. 差异( differential的复数形式 ); 工资级差; （汽车）差动齿轮; 分速器
🗣️ 情景例句
He's coming over to talk about it.
他就是要来谈这个问题。
Fine, thanks. And you?
很好，谢谢，你呢？
Have you hurt yourself?
你摔伤了没有？