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 know.
我知道。
How much is this meat per pound?
每磅肉要多少钱？
In that case, I'll have some set aside for you.
既然这么说，我会为你留一些下来。