It does this via the spinal cord, which runs from the brain down through the back and contains threadlike nerves that branch out to every organ and body part.
脊髓帮助达成了这一切，它从脑开始经由背部向下延伸，包含着散布到身体各处的神经。
3
The Achilles tendon is a strong fibrous cord that connects the muscles in the back of your calf to your heel bone.