Sulci colli mandibulae
[医] 下颌颈沟
🧩 词语组成解析
[医] 沟
🗣️ 情景例句
Don't worry, it's in the bag.
不用担心， 这事儿十拿九稳。
I ought to keep cool.
我应该保持冷静。
What was wrong with Jim ? Did he hurt himself?
吉姆怎么啦？他伤着自己啦？