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
What?
什么？
Hardships never come alone.
祸不单行。
In those days wandering minstrels were welcome everywhere.
当时，浪迹天涯的吟游歌手到处受欢迎，