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
That's our motto.
这是我们的格言。
Sorry, I guess I wasn't thinking. I won't do it again.
对不起。我对这事没想过，下次不这样了。
How time files! More than a week has passed already!
光阴似箭！已经过了一周多时间了！