1. Exercise helped to straighten the injured arm.
    锻炼有助于使伤臂伸直。

2. Exercise can result in iron loss through a variety of mechanisms.
    运动可能通过多种机制导致铁离子流失。

3. But until recently, the academic edge gained by participating in sports was thought to come from the increased self-confidence, the better mood, and the ability to concentrate that comes from burning off steam in exercise.
    但直到最近，人们还认为因参加体育运动而获得的学业优势来自于增强的自信、更好的心态，以及由运动时消耗体力所带来的集中注意力的能力。

4. It is possible to play simply for the fun and exercise:
    那才可能是单纯的为了娱乐和锻炼而进行比赛。

5. This simple truth was demonstrated rather dramatically during a civil defence exercise in a small town in Canada.
    这个简单的事实在加拿大一个小镇的一次民防演习中颇为戏剧性地展示出来.

6. The time I spent at exercise gradually diminished.
    我花在锻炼上的时间逐渐减少，

7. They found the young man walking through some marshes in a military exercise.
    他们看到那个年轻人正在参加军事演习，徒步穿越沼泽地。

8. The exercise is great; the lifting gets easier with every load, even if my shoulder muscle is sore.
    这可锻炼人哩，虽然肩部肌肉酸痛，可我扛垃圾桶越扛越得心应手了。

9. This boost in reaction time after exercise training may occur because declines associated with getting old could actually stem from declines in physical condition.
    接受运动训练之后，人的反应速度会加快，这可能是因为与衰老有关的机能衰退实际上根源于体质下降。

10. The most beneficial forms of exercise, he says, engage both.
    他说，最有益的运动是身心兼顾。