receding gum造句

"receding gum"是什么意思

造句与例句手机版

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。
It's difficult to see receding gum in a sentence. 用receding gum造句挺难的

相邻词汇

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