例句與造句

1. There are three anterior spinal veins in total.
2. The bladder infection was the source of inflammatory phlebitis extending from pelvic to spinal veins.
3. Anterior spinal veins fall into the intradural network of the "'vertebral venous system " '.
4. These, along with three posterior spinal veins, are allowed to communicate with one another as they run interconnected throughout the entire length of the spinal cord.
5. The subarachnoid space is filled with cerebrospinal fluid and contains the vessels that supply the spinal cord, namely the anterior spinal artery and the paired posterior spinal arteries, accompanied by corresponding spinal veins.
6. It's difficult to find spinal veins in a sentence. 用spinal veins造句挺難的