例句與用法

1. Contraction of the zygomatic major muscle elevates and retracts the corner of the mouth , while the depressor labii inferioris pulls the lips down and out
   大顴肌控制嘴角的延展和收縮動(dòng)作，降鼻翼肌則負(fù)責(zé)使上下唇上下移動(dòng)。
2. Contraction of the levetor labii superioris , zygomatic minor , and levator labii superioris alaeque nasi elevate the upper lip ; contraction of the depressor labii inferioris depress the lower lip
   提上唇肌、小顴肌、提鼻翼肌的收縮動(dòng)作會(huì)牽動(dòng)上唇，使之往上移動(dòng)，而降下唇肌則掌管下唇的收縮及下拉。