| 1. | The central portion of the back is composed of a bony spinal column surrounded by muscles and ligaments
脊柱有一个正常的曲线，从颈到臀，形成两个s形。 |
| 2. | The central portion of the back is composed of a bony spinal column surrounded by muscles and ligaments
脊柱有一个正常的曲线，从颈到臀，形成两个s形。 |
| 3. | This should be maintained for effective functioning of the spine and minimal stress on the muscles and ligaments
这个弧度应尽量保持，使肌肉处于平衡及松弛状态，不致过劳，并能适当地运作。 |
| 4. | Exercise is the best way to promote healing to all injured bone , joint , muscle and ligament , especially stretching
运动是最好增强关节灵活程度的方法，亦是促进各种骨骼、关节、肌肉和韧带受损复原的方法，特别是伸展运动。 |
| 5. | Bivalves include all dorsoventrally compressed mollusc species ; they typically have two - part shells dorsally hinged by strong muscles and ligaments
双壳贝包含所有背腹扁平的软体动物,其特徵包括：具有双壳,在背部有强韧的肌肉和韧带连接双壳 |
| 6. | Viewed from the side , the spinal column is " s " shaped . this should be maintained for effective functioning of the spine and minimal stress on the muscles and ligaments
这个弧度应尽量保持，使肌肉处于平衡及松弛状态，不致过劳，并能适当地运作。 |
