anal canal的用法和樣例:
例句
- The terminal hindgut forms the upper portion of the anal canal.
末端后腸形成肛管的上部。 - Peristalsis in the large intestine pushes waste toward the anal canal and is important in removing gas and dislodging potential bacterial colonies.
大腸內的蠕動(dòng)將糞便推入肛管,在排出結腸內的氣體及抑制細菌生長(cháng)方面發(fā)揮十分重要的作用。