spine
- n. 脊柱，脊椎；刺；书脊
英英释意
- 1. the series of vertebrae forming the axis of the skeleton and protecting the spinal cord;
- "the fall broke his back"
- 2. any pointed projection
- 3. a sharp-pointed tip on a stem or leaf
- 4. a sharp rigid animal process or appendage; as a porcupine quill or a ridge on a bone or a ray of a fish fin