Gingival retractor
[医] 龈压缩器, 龈牵开器
🏥 医学释义
牙龈牵开器
🧩 词语组成解析
a. 齿龈的\\n[医] 龈的
n. 食言的人, 牵拉肌, 牵开器\\n[医] 牵开器, 缩肌
🗣️ 情景例句
Its reputation, the opportunities it offers, and the working conditions.
它的声誉，提供的机遇，以及工作条件等。
He knows much who knows how to hold his tongue.
懂得缄默的是明白人。
I want to improve, but I don't know how.
我想提高它，但又不知道怎么样才能提高。