Eustachian
[医] 咽鼓管
🗣️ 情景例句
Susan Stewart's office.
Susan Stewart办公室。
Children learn to creep ere they can go.
孩子要走路，先得学爬行。
The lake was not a natural one, but a man-made reservoir.
这不是一个天然湖泊，是一座人工修建的水库。