Gingival zone
[医] 龈区
🧩 词语组成解析
a. 齿龈的\\n[医] 龈的
zone
[zon]
n. 地带;区域，范围;地区，时区;[物]晶带;
vt. 划分成带;用带子围绕;
vi. 分成区，分成地带;
🗣️ 情景例句
He's been here for years, he should know the ins and outs of the job by now.
他在这里已经好多年，现在理应熟悉各方面的工作了。
What do you plan to do this Friday?
明天你打算干什么？
How much does it cost?
多少钱？