例句與造句

1. There is a small risk of piercing the superior labial artery, which lies just above the upper lip.
2. Additionally, lack of pulsation distinguishes this lesion of the lower lip from a tortuous segment of the inferior labial artery.
3. The "'nasal septum "'also is supplied with blood by the sphenopalatine artery, and by the anterior and posterior ethmoid arteries, with the additional circulatory contributions of the superior labial artery and of the greater palatine artery.
4. It's difficult to find labial arteries in a sentence. 用labial arteries造句挺難的