dental hygiene
柯林斯詞典
1. N the maintenance of the teeth and gums in healthy condition, esp by proper brushing, the removal of plaque, etc 口腔衛(wèi)生 (Also called oral hygiene)
返回 dental hygiene
1. N the maintenance of the teeth and gums in healthy condition, esp by proper brushing, the removal of plaque, etc 口腔衛(wèi)生 (Also called oral hygiene)