Doctrines
n. 教条( doctrine的复数形式 ); 教义; 学说; （政府政策的）正式声明
🗣️ 情景例句
Good. Thank you. I'll be right down.
好，谢谢你。我马上下来。
I would like to call an eletrician to come this afternoon.
我要叫一个电器师傅今天下午来。
Yes, they do.
他们是。