Tubera eustachian
[医] 欧氏结节, 鼓室结节
🧩 词语组成解析
[医] 咽鼓管
🗣️ 情景例句
Frank, you got it.
Frank你猜对了。
Youth looks forward and age backward.
青年人向前看，老年人向后看。
But which language is the most widely spoken in the world?
但是世界上哪种语言运用最广泛？