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
Good-bye, Dean Rafer.
再见， Rafer主任。
It's faster to go by plane than by boat.
和坐船比，坐飞机是更快的。
because balloons can be a great danger to aircraft.
因为气球有可能给飞机造成极大的危险。