Squelette
翼形中线(弧线), 剖面中线
🗣️ 情景例句
Some think that all's fair in business.
一些人以为商界的一切都是公平的。
I know the boy whose father is a professor.
我知道那个男孩的父亲是大学教授。
'Good heavens!' exclaimed his wife.
“天啊！”他的夫人惊叫，