“齿龈”造句
在患病牙齿附近可见
齿龈脓肿或
齿龈疖.
A parulis, or gum boil, may be present near the involved tooth.
在我突出于
齿龈的部分有一层珐琅 “ 皮 ”.
My part that protrudes from the gum has a'skin " of enamel.
你的牙拔去之后,
齿龈萎缩了不少.
How your gums have shrunk since your teeth were extrated.