Bone density contributes to the strength of the bones; and their density changes in response to body weight and to weight-bearing exercise.
骨密度代表骨的强度，骨密度依随体重和负重锻炼而相应升降变化。
I always see some people riding the bicycle to exercise their bodies, they are group and look so fit, I can tell from their body shapes.
我总是看到一些人骑自行车来锻炼他们的身体，他们是一群人，看起来很健美，从他们的体型就可以看出来。
They can build their body through exercise.
他们可以通过运动来健身。
If anything, exercise brings on hot flashes in many women by increasing their core body temperature, she says.
如果要说什么的话，锻炼对许多妇女来说，由于增加了体温反而导致潮热，她说道。
Exercise builds one's body andf reduces diseases. Sports let their brains have a rest so that their revision will be more effective.
锻炼可以强壮她们的身体，减少疾病的发生，运动让她们的大脑得到休息，那么她们的温习会更有效。
At the study's end, both the caloric-restriction group and the caloric-restriction plus exercise group lost about 10 percent of their body weight.
研究结束时，单纯热量限制组和热量限制加锻炼两组人员均降低体重约10%。
To train students' expressive force should be concerned in teaching body-exercise, which not only train them to show their actions and poses but also enhance their aesthetic capacity.
健美操教学中应该注重学生表现力的培养，不仅可以提高学生的动作美、姿态美，还能提高学生欣赏美、表现美的能力。
The main purpose of the PE in colleges is to foster the notion of taking exercises lifelong, besides building up their body and mind, and it also provides a foundation to the lifelong exercise.
高校体育教学的目的除使学生身心得到锻炼外，更主要的是培养学生“终身锻炼”的意识，并为“终身锻炼”打下一定的体育基础。
By surveying the sports lifestyle of middle school teachers, this paper finds out that middle school teachers have the demand on body exercise, their participating motivation tend to diversify.
通过对地方中学教师体育生活方式的调查研究，表明中学教师健身需求以及参与动机有着多元化的趋势。
By surveying the sports lifestyle of middle school teachers, this paper finds out that middle school teachers have the demand on body exercise, their participating motivation tend to diversify.
通过对地方中学教师体育生活方式的调查研究，表明中学教师健身需求以及参与动机有着多元化的趋势。
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