brushing ['brʌʃɪŋ]

例句:

• 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。
  
• A thorough brushing helps to freshen up your mouth.
  彻底刷牙有助于口气清新。
  
• It's caused by too much brushing or combing.
  来自BBC
• I felt her dark brown hair brushing the back of my shoulder.
  我感觉到她深褐色的头发拂过我的肩。
  
• Few brushing with Glister expect anything more than white teeth.
  来自CNN
• The friction of people brushing past her was evidently painful.
  来自V. Woolf