Cách sử dụng
The spine is the long, thin bone that runs down the middle of your back. It helps to support your body and protect your spinal cord. You can use the word "spine" when talking about your body, your health, and your posture. It's also used to describe the hard, protective cover of a book that houses the pages. For example, you can say "I need to work on improving my posture by strengthening my spine" or "The spine of this book is made of durable materials".