Receding gums
[医] 退缩龈
🧩 词语组成解析
v. 逐渐远离( recede的现在分词 ); 向后倾斜; 自原处后退或避开别人的注视; 尤指问题
n. 牙龈, 树胶；牙床（gum复数形式）
🗣️ 情景例句
He was left in charge of the shop while the manager was away.
经理不在时他负责这个商店。
Don't forget to call me.
不要忘记叫我。
Bagrit foresaw a time when computers would be small enough to hold in the hand,
巴格瑞特预示有一天计算机可以小到拿在手上，