Macewen's triangle
[医] 麦丘恩氏三角, 外耳道上三角
🧩 词语组成解析
🗣️ 情景例句
My boss does everything by the book.
我们老板一切照章办事。
We shall never have friends if we expect to find them without fault.
指望朋友无缺点，永远休想交朋友。
NASA is now going to put the telescope right,
国家航天局准备纠正这一错误，