Healthy eating and physical exercise are ways of maintaining general good health.
健康饮食和体育锻炼是保持健康的方式。
Compared with a hundred years ago, our lives are less tightly bound by social norms and physical constraints.
与一百年前相比,我们的生活不再那么受社会规范和身体限制的束缚。
Various proposals were put forth to arrange the elements into groups based on similarities in chemical and physical properties.
人们提出了各种建议,根据化学和物理性质的相似性把这些元素分组。
The National Association for Sport and Physical Education says twenty to thirty students in a P.E.class should be the limit.
VOA: special.2009.08.06
By this we mean poor diet and physical activity and obesity, but history offers a depressing picture.
在这个问题中我们是指不良饮食,缺乏运动和肥胖,但历史情况不容乐观
However, their biological relatives in Mexico would presumably have that same risk, but it would never be manifested if they're not exposed to what some have called a toxic food and physical activity environment.
而且,他们远在墨西哥的血缘亲属,可能也面临同样风险,但他们面临着所谓的有毒食物和活动环境,这个说法就不会得到证实
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