走路方法得当的话是一种有氧锻炼。
Walking, done in the right way, is a form of aerobic exercise.
我再不做有氧健身操了—太累人了。
我每周做一次有氧健身运动。
我想进一个有氧运动班来增强我的体质。
我参加了有氧健身班。
几个星期的有氧健身运动将使松弛的腹部结实。
没有氧气，大脑很快就会受损。
其他行星上没有氧气，这意味着这些行星缺乏保护生命体免受紫外线辐射的臭氧层。
The absence of oxygen on other planets means that those planets lack an ozone shield to protect life forms against UV radiation.
在这种有氧健身运动出现之前，市面上已经有不少健身水疗会所，在大城市甚至有全国性的连锁机构。
A number of fitness spas existed prior to this aerobic fitness movement, even a national chain with spas in most major cities.
在火星和我们太阳系的其他行星上没有氧气，这意味着这些行星也缺乏保护地表生物免受紫外线辐射的臭氧层。
The absence of an oxygen atmosphere on Mars and other planets in our solar system means that these planets also lack an ozone shield that would protect surface-dwelling life from UV radiation.
他计划在没有氧气罐的情况下攀登，只有少数登山者做到了这一点。
He planned to climb it without oxygen tank, something only a few climbers had managed to do.
当空气温度较高时，含有较重同位素氧-18的蒸汽比含有氧-16的蒸汽更容易凝结，并形成雪状的降水。
When the air was warm, vapor containing the heavier isotope, oxygen-18, condensed and formed precipitation, in the form of snow, more readily than did vapor containing oxygen-16.
这个动作比起跳舞，更像锻炼，这就是为什么一家大公司称其为有氧健身舞。
The action is more like dancing than exercises, that's why one big company calls it dancercise.
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