[医] 退缩龈

receding chins───下陷的下巴

chewing gums───口香糖，泡泡糖

feeding cups───排种杯

receding chin───下颚后退

receding hair───退去的头发

reading groups───阅读小组

receiving ends───接收端

receiving sets───接收装置

recording vans───录音车

Receding gums can be the result of disease or simply incorrect brushing.───牙龈萎缩可能是疾病导致的，也可能仅仅是错误的刷牙方式引起的。

Periodontal disease is a chronic bacterial condition associated with receding gums and tooth loss.───牙周病是一种慢性细菌感染性疾病,会引起牙床萎缩和牙齿脱落.

Eat : Deficiency of calcium fluoride can cause varicose veins, receding gums, curvature of the spine, &eye problems.───吃： 缺乏氟化钙可能造成静脉曲张、齿龈老化、脊椎弯曲和视力问题。

Eat : Deficiency of calcium fluoride can cause varicose veins, receding gums, curvature of the spine, & eye problems.───吃：缺乏氟化钙可能造成静脉曲张、齿龈老化、脊椎弯曲和视力问题。

In adults and elders, receding gums can result in root decay (decay along the roots of teeth).───成年人和老年人，牙龈萎缩会导致牙根腐烂（沿牙齿根部腐烂）。

Receding gums - when tissue is lost from gums around the teeth - is common in adults over 40.───退缩牙龈——牙齿周围的牙龈丢失组织，在40岁以上成人中很常见。

Brushing too hard can cause receding gums, tooth sensitivity, and over time, loose teeth.───（刷牙时用力过猛，会造成牙龈萎缩、牙齿过敏，久而久之会造成牙齿脱落。）由此可知，选项。

Dentist: I don't see any cavities, but you have receding gums.───牙医：我看不见有蛀牙，可是你的牙龈萎缩。

Periodontal disease is a chronic bacterial condition associated with receding gums and tooth loss.

Receding gums can be the result of disease or simply incorrect brushing.