心理学研究人员通常认为面部表情反映了情绪状态。
Psychological researchers generally recognize that facial expressions reflect emotional states.
研究人员通过实验发现，学生可以习得更积极的压力应对方式。
Researchers found through experiments that students could be taught to respond to stress in a more positive way.
研究人员推测，手艺活动促进了大脑神经通路的发展，有助于保持认知健康。
The researchers speculate that craft activities promote the development of nerve pathways in the brain that help to maintain cognitive health.
六个月后，研究人员发现高蛋白组的肌肉功能明显改善——几乎是对照组的两倍。
After six months, researchers found the high protein group had significantly improved their muscle function—almost twice as much as the control group.
研究人员蒂莫西·索尔特豪斯称，大多数人即使到了晚年，思维能力仍处于较高水平。
Most people's minds function at a high level even in their later years, according to researcher Timothy Salthouse.
我们友好、努力的工作人员帮助了许多来自世界各地的学生实现了在生活中使用英语的梦想。
Our friendly hard-working staff have helped many students from all over the world achieve their dream of using English in their lives.
许多医生和研究人员认为，孤独会损害免疫系统，使我们更容易患上一系列轻微和重大疾病。
Many doctors and researchers believe that loneliness harms the immune system, making us more vulnerable to a range of minor and major illnesses.
当医学研究人员了解了如何预防疾病并阻止其传播时，全世界许多人的生活质量得到了改善。
When medical researchers learned how to prevent diseases and stop them from spreading, the quality of life for many people around the world improved.
如今，随着经济的发展和生活水平的提高，越来越多的中国人包括许多农民和外出务工人员都能乘飞机出行。
Nowadays, with the development of China's economy and the improvement of people's living standards, more and more Chinese people, including many farmers and migrant workers, can travel by air.
研究人员已经证实，当人们动脑筋时，大脑中会发生生化变化，使其在注意力和记忆等认知区域更有效地发挥作用。
Researchers have established that when people are mentally engaged, biochemical changes occur in the brain that allow it to act more effectively in cognitive areas such as attention and memory.
正如研究人员之一罗伊·鲍迈斯特告诉我的那样：“我们作为人类的其中一部分职责是照顾他人，为他人做出贡献。”
As Roy Baumeister, one of the researchers, told me, "Partly what we do as human beings is to take care of others and contribute to others."
对世界各地的生物医学研究人员来说，双胞胎提供了一个宝贵的机会，来解开基因和环境——也就是先天和后天的影响之谜。
To biomedical researchers all over the world, twins offer a precious opportunity to untangle the influence of genes and the environment—of nature and nurture.
研究人员发现，那些报名辅导他人的学生会更努力地去理解、更准确地回忆、更有效地运用材料。
Researchers have found that students who sign up to tutor others work harder to understand the material, recall it more accurately and apply it more effectively.
救援人员不畏艰险努力营救全体船员。
3万多名医护人员抵达武汉救助病人。
More than 30,000 medical workers came to Wuhan to help the sick people.
记住，你的医生和其他医护人员是站在你这边的。
Remember, your doctor and other caregivers are on your side.
书店的工作人员很友好，他们可以用英语进行交流。
The staff in the bookstore are friendly, and they can communicate in English.
社区工作人员有足够的耐心向老人讲解健康码的使用方法。
The community worker is patient enough to explain to the old how to use Health Code.
截至2020年3月5日（周四），已有3万多名医护人员奔赴武汉。
By Thursday, March 5th, 2020, over 30,000 medical workers have gone to Wuhan.
研究人员表示，这不仅会导致失眠，还会增加肥胖、糖尿病和其他疾病的风险。
Researchers say that may not only cause sleeplessness, but also raise the risk of obesity, diabetes and other diseases.
她设计了一款独特的中国结，以表达对那些几个月前支援武汉的医护人员的感激之情。
She designed a special Chinese knot to express her thanks to the medics who were sent to support Wuhan several months ago.
我们一直在家里，但我钦佩医护人员，他们每天冒着生命危险帮助我们保持健康和安全。
We have been at home, but I admire the healthcare workers who have risked their lives every day to help us stay healthy and safe.
1960年，一位名叫珍·古道尔的研究人员开始在非洲与野生黑猩猩一起生活并进行研究。
In 1960, a researcher named Jane Goodall began to live with and study wild chimpanzees in Africa.
德国莱比锡大学的研究人员召集了1000多名75岁以上的退休工人，并通过一系列的测试评估了这些志愿者的记忆力和思维能力。
Researchers from the University of Leipzig in Germany gathered more than 1,000 retired workers who were over age 75 and assessed the volunteers' memory and thinking skills through a battery of tests.
研究人员2003年完成了人类基因组测序。
救援人员们也相拥在一起，留下喜悦的泪水。
乐观是编程人员的职业病，而反馈则是解药。
Optimism is an occupational hazard of programming. Feedback is the treatment.
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