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
I know. I know.
我知道。我知道。
I am really proud of my department and my staff.
我为我的部门和员工们感到骄傲。
and these will ply the short wings with such irresistible power that they can bore for long distances through an opposing gale before exhaustion follows.
这些肌肉以巨大的力量扇动短小的翅膀，使这类鸟能顶着大风飞行很远的路才会疲劳。