buccinator muscle

同根派生

英汉例句

• The buccinator muscle and its vasculars and nerve were revealed and observed.
  显露颊肌及其血管和神经。
• The risorius and the buccinator muscles assist in the retraction of the lips, as well as support entrapment of air within the oral cavity.
  笑肌和颊肌帮助唇的收缩，也支撑了整个口腔的气体流通。