Defstruct
定义结构
🗣️ 情景例句
Learning to express oneself well in an important part of education.
学会把意思表达清楚是受教育的一个重要方面。
He is hard to please.
他是难以取悦的。
But this was before Annie Sullivan came to stay.
但是，这都是安妮·莎利文来住下之前的事了。