Schools in our city provide a variety of optional classes to cater to students of different levels.
我们市里的学校提供各式各样的选修课，以满足不同水平的学生。
To help maximize fitness levels in our town's residents, we should, therefore, equip our new community fitness center with such machines.
因此，为了帮助我们城镇的居民最大限度地提高健身水平，我们应该为我们新的社区健身中心配备这样的机器。
Only when all of us join hand in hand to eliminate noise pollution at all levels, can we have a better environment and a more beautiful future.
只有当我们所有人携手消除各级噪音污染时，我们才能拥有更好的环境和更美好的未来。
Its key objective is to place at the center of recovery efforts measures that would generate higher levels of employment and provide basic social protection for the most vulnerable.
它的关键目标是把能够创造更高水平就业和为最弱势群体提供基本社会保护的措施置于复苏工作的中心位置。
At its most straightforward, a green neighborhood simply means more places for kids to play—which is vital since time spent outdoors is one of the strongest correlates of children's activity levels.
从最直接的意义上说，一个绿色社区仅仅意味着有更多的地方供孩子们玩耍，而这是至关重要的，因为户外活动时间是与孩子们的活动水平最相关的因素之一。
Reducing levels of carbon dioxide in the atmosphere is of critical importance.
减少大气层中的二氧化碳含量极其重要。
To make summer reading easy, we have selected interesting and knowledge filled articles of different levels.
为了使暑假阅读变得容易，我们选择了不同级别的有趣且知识丰富的文章。
What is more significant than any geographical spread is the access that different levels of society had to good-quality products.
比地理上的广阔分布更重要的是，社会的不同阶层都能够获取这种高质量的产品。
In fact, studies indicate that four billion years ago, carbon dioxide levels in the atmosphere were much higher than today's levels.
事实上，研究表明40亿年前大气中的二氧化碳含量远远高于今天的水平。
In Earth's earliest atmosphere, methane and carbon dioxide occurred at much higher levels than at present-a circumstance that was favorable for early life.
在地球最早的大气层中，甲烷和二氧化碳的含量比现在要高得多，这对早期生命来说是有利的。
Early warnings of rising water levels prevented another major catastrophe.
提前发出的洪水水位上涨警报防止了又一次的重大灾害。
Sea levels are rising, but hopes aren't sinking in the Pacific Islands.
尽管海平面正在上升，但太平洋群岛的希望并没有沉没。
A ten-year-old child can move up through the levels of a video game easily.
一个十岁的孩子可以很容易地在电子游戏中升级。
Cultural sensitivity will help you with your communication on both business and personal levels.
文化敏感度会在你的商务沟通和个人交流上有所助益。
Retail trade groups praised the ruling, saying it levels the playing field for local and online businesses.
零售贸易组织对这一裁决表示赞赏，称它为本地和网上企业提供了公平的竞争环境。
Only when all of us join efforts to eliminate pollution at all levels can we expect to have a better environment.
只有当我们所有人共同努力消除各种污染时，我们才能期望有一个更好的环境。
That study found that participants who reported the highest levels of optimism were far more likely to live to age 85 or beyond.
那项研究发现，乐观程度最高的参与者活到85岁或以上的可能性要大得多。
In laboratory simulations of challenging activities such as driving, those who felt in control of their lives pumped out lower levels of stress hormones such as cortisol.
在实验室的挑战性活动（比如驾车）的模拟中，那些觉得生活在自己的掌控之中的人产生的应激激素（比如皮质醇）更少。
Similarly, according to researchers, listening to just 30 minutes of soft music every day may help with healthy blood sugar levels, through the lowering of stress and anxiety.
类似地，根据研究人员的说法，每天只听30分钟的轻音乐可能有助于降低压力和焦虑，从而保持健康的血糖水平。
Two fantastic episodes with 60 exciting levels!
—两个超棒的剧集，60个关卡哦！
It boosts energy levels and supports the immune system.
它能提高人体精力和增强人体免疫力。
Sunlight helps to boost your mood as well as your energy levels.
阳光可以帮助你恢复能量，心情变好。
It's also the key to bonding, as it increases levels of empathy.
它同时也是产生情感联系的关键，因为它能增加对他人的认同感。
Rising levels of real wages should also help to increase consumption.
实际工资的增长也会帮助增加消费。
Laughing lowers levels of stress hormones and strengthens the immune system.
笑可降低应激激素水平，并加强免疫系统。
Soon, I found myself losing weight while maintaining higher energy levels.
很快，我就发现自己体重越来越轻，但精力越来越旺盛。
The richness of great books shows itself in the many levels of meaning they contain.
伟大作品的丰富内涵可以在其多个不同意义层次上显示出来。
For me, getting enough sleep, eating right and exercising reduce my stress levels.
对于我来说，充足的睡眠，健康的饮食以及锻炼身体可以帮助我减压。
Controversial books are the ones that push your perception of the world to new levels.
有争议的书是推动你对世界理解向更新水平迈进的源动力。
Controversial books are the ones that push your perception of the world to new levels.
有争议的书是推动你对世界理解向更新水平迈进的源动力。
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