• 基础释义
  • 柯林斯词典释义
柯林斯高阶英汉双解学习词典释义
  • N-COUNT
    口腔保健员;牙科洁治员;牙医助手
    A hygienist or a dental hygienist is a person who is trained to clean people's teeth and to give them advice on how to look after their teeth and gums.