Unfortunately, most Americans are not getting enough exercise.
但不幸的是，大多数美国人的锻炼量还不够。
If you compete regularly, you may feel you are getting enough exercise.
如果你经常参加比赛，你会觉得训练已经足够了。
Getting enough exercise will also help you to sleep better.
进行适量的体育锻炼也能促进睡眠。
Getting enough exercise will also help you to sleep better.
进行适量的体育锻炼也能促进睡眠。
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