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a. 健康的，健壮的11 次
Instead, a growing body of research showed that frequent, low-severity fires made many ecosystems healthier.
相反，越来越多的研究表明，频繁的低强度火灾让许多生态系统变得更健康。
A flashing set of healthy and clean, regular “pearly whites” was a rare sight in Victorian society, the preserve of the super-rich (and even then, dental hygiene was not guaranteed).
一口闪亮、健康洁净、整齐的“珍珠白”牙齿在维多利亚时代的社会中十分罕见，是超级富豪的专利（即便如此，牙齿卫生也无法保证）。
As for me, weighing myself every day caused me to shift my focus from being generally healthy and physically active to focusing [solely] on the scale.
就我而言，每天称体重使我的关注点从保持整体健康和积极锻炼，转移到了只盯着体重秤上。
Healthy trees are also better able to fend off insects.
健康的树木也更能抵御虫害。
In a recent study [involving] over 400 healthy adults, researchers from Carnegie Mellon University in Pennsylvania examined the effects of perceived social support and the receipt of hugs [on] the participants’ susceptibility to developing the common cold after being [exposed] to the virus.
在最近一项{{5}}400多名健康成年人的研究中，宾夕法尼亚州卡内基梅隆大学的研究人员考察了感知到的社会支持和获得拥抱{{6}}参与者在{{7}}病毒后患普通感冒易感性的影响。
The population would be fitter, healthier and produce more winners.
国民将更加健壮、更加健康，并涌现出更多的冠军。
展开其余 5 条收起
(46) We don’t have to learn how to be mentally healthy; it is built into us in the same way that our bodies know how to heal a cut or mend a broken bone.
(46) 我们无须学习如何保持心理健康；它是我们与生俱来的，就像我们的身体知道如何愈合伤口或修复断骨一样。
We think of it simply as a healthy and helpful flow of intelligent thought.
我们只是把它看作一股健康而有益的理性思维之流。
“Healthy optimism means being in touch with reality,” says Tal Ben-Shahar, a Harvard professor.
“健康的乐观意味着与现实保持联系，”哈佛大学教授泰勒·本-沙哈尔说。
Newspapers are becoming more balanced businesses, with a healthier mix of revenues from readers and advertisers.
报纸正成为更加均衡的行业，来自读者和广告商的收入构成更加健康。
A Department of Health spokesperson said: “We need to create a new vision for public health where all of society works together to get healthy and live longer.
卫生部一位发言人说：“我们需要为公共卫生开创一个新愿景，让全社会共同努力，变得更健康、活得更长久。
a. 有益健康的，卫生的6 次
adolescents should form healthy social media habits.
青少年应养成健康的社交媒体使用习惯。
To prevent entire ecosystems from going up in smoke, Martin said, people must bring healthy fire back to places that need it.
马丁说，为了防止整个生态系统化为灰烬，人们必须把健康的火重新带回需要它的地方。
Her critique of the lameness of many public-health campaigns is spot-on: they fail to mobilize peer pressure for healthy habits, and they demonstrate a seriously flawed understanding of psychology.
她对许多公共卫生运动乏力无效的批评切中要害：这些运动未能调动同伴压力来培养健康习惯，而且表现出对心理学严重错误的理解。
The demands follow comments made last week by the health secretary, Andrew Lansley, who insisted the government could not force people to make healthy choices and promised to free businesses from public health regulations.
这些要求是针对卫生大臣安德鲁·兰斯利上周的言论提出的。兰斯利坚称政府不能强迫人们做出健康的选择，并承诺让企业摆脱公共卫生法规的束缚。
He said that manufacturers of crisps and candies could play a central role in the Change4Life campaign, the centrepiece of government efforts to boost healthy eating and fitness.
他说，薯片和糖果生产商可以在“为生活而改变”运动中发挥核心作用，该运动是政府推动健康饮食和健身工作的重点。
parents should set good examples for their children by keeping a healthy diet at home.
父母应在家中保持健康饮食，为孩子树立好榜样。