Principals
n. 负责人( principal的复数形式 ); [法律]本人; 主要的人（或物）
🗣️ 情景例句
kick off your shoes, and sit down.
脱掉你的鞋子， 坐下来。
What's the fare?
车费多少？
Experts believe that there are about 40,000 different types of job in the world. Choosing the right one is a difficult job in itself.
专家们认为世界上大约有4万个不同种类的工作。要从中选择一个适合自己的工作是很困难的。