Mandibular sulci
[医] 下颌[颈]沟
🧩 词语组成解析
a. 颚的\\n[医] 下颌[骨]的
[医] 沟
🗣️ 情景例句
I'd like to buy some stamps for this letter.
我想买这封信的邮票。
I'm writing to an old friend.
给一个老朋友。
Well, every time you get back at night, you drop your shoes on the floor.
唔，每一次晚上回来时，你都把鞋子丢在地板上。