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
So?
那又怎么样？
He's crazy about Michael Jordan.
他疯狂喜爱迈克·乔丹。
I had to think of a way of preventing him from following me around all morning.
我得想办法不让他整个上午缠着我。