1·What the researchers found was that, at first blush, strenuous physical activity does seem to damage knees.
研究人员发现，乍看之下剧烈的体能活动会伤害膝盖。
2·"Except for very strenuous yoga practices, you don't really burn enough energy to make any difference in terms of weight," said Kristal, who has practiced yoga for 10 years.
“除非是做特别剧烈的瑜伽运动，否则你实际消耗的能量不足以减肥。”克里斯多说，他练习瑜伽已经有10年了。
3·When a thick cloud of air pollution settled in over London last week, experts warned those with health problems to avoid strenuous exercise.
上周，当伦敦笼罩在污染严重的空气中时，专家警告存在健康问题的人应避免剧烈运动。
4·Don't do strenuous exercises until your wound is healed.
不要做剧烈活动，直到你的伤口愈合。
5·I think yoga suit me best, because I don't like strenuous exercise.
我认为瑜伽更适合我，因为我不喜欢剧烈运动。