Gingival trough
[医] 龈沟
🧩 词语组成解析
a. 齿龈的\\n[医] 龈的
trough
['trɔ:f]
n. 水槽，食槽;低谷期;[航]深海漕;[气]低气压槽;
🗣️ 情景例句
I always wanted to travel to Europe but I was afraid that language would be a problem.
我总想去欧洲旅游，但我又怕语言是个问题。
The restaurant is in the basement.
那餐厅在地下室。
I only decided to get one today.
我只是今天才决定买的。