脊椎骨

例句：

1. 1. The human body is made up of many vertebrae, or spinal bones.
   人体由许多椎骨组成，即脊椎骨。
2. 2. He had to undergo surgery to repair his damaged vertebrae.
   他不得不接受手术来修复他的受损脊椎骨。
3. 3. Vertebrae are the bony structures that support and protect the spinal cord.
   脊椎骨是支撑和保护脊髓的结构。