, it protects people from the sun’s rays (光线). Many Chinese cities get hot in the summer. People... difficult to get where I’m going. Why? Because of all the umbrellas in my way.Before I came to China, I ……

the eyes from the sun’s harmful rays. The following tips from the American Optometric Association (美国... take reading seriously6. What can we learn from the article? A. Teenagers often have trouble finding ……

the sun.But picking the right umbrella is tricky. You have to combine scientific know-how with fashion... their ability to block ultraviolet rays (UV). UV rays are harmful radiation *emitted by the sun and pose ……

the hard way about the sun’s ultraviolet (紫外线的), or UV, light. It can burn your skin so bad... the vast majority of the UV light released by the sun. Without it, we wouldn’t just get a sunburn. Life ……

WASHINGTON: US researchers say vegetarian teenagers have a healthier diet than their meat-eating counterparts. Being a vegetarian is actually a good way to get recommended vitamins and minerals ……

晒了太阳会变色的膏药！词数 155 建议阅读时间 3分钟测试见7版 IF you stay in the sun for too long, your skin (皮肤) will get..., ultraviolet rays (紫外线) cause a chemical reaction (化学反应) in the plaster. Its color changes from yellow ……

of the harmful effects of the sun?Overexposure (过度暴露) to the sun’s ultraviolet (紫外线的) rays can lead to more than.... For children, the risk is high, as people under the age of 18 get the most sun exposure.How can I protect ……

of the harmful effects of the sun?Overexposure (过度暴露) to the sun’s ultraviolet (紫外线的) rays can lead to more than.... For children, the risk is high, as people under the age of 18 get the most sun exposure.How can I protect ……

from eating a poor diet or not being able to absorb the vitamins you consume. If you have a vitamin B... and other B vitamins play a role in producing brain chemicals that affect mood and other brain functions ……

and wait. The bag will try to get off the ground as the sun's rays (光线) heat (加热) it. It will get... your balloon is the dark color of the garbage bag. Dark colors absorb (吸收) heat rays from the sun ……

and wait. The bag will try to get off the ground as the sun's rays (光线) heat (加热) it. It will get...) to heating your balloon is the dark color of the garbage bag. Dark colors absorb (吸收) heat rays from the sun ……

lenses. Useful for driving, boating and fishing, these minimize the sun's reflection or glare from....But, the most important health feature they offer— blocking ultraviolet, or UV, rays— is as likely ……

sun exposure.How can I protect myself from the sun?Having said this, don't be afraid to go out... Cancer Society:● Try to stay out of the sun from 10 am to 4 pm. During that time, play in the shade ……

an hour in the sun, because fluorescent light bulbs also emit UV rays.A moisturizer, sunblock... to the sun’s rays can do more harm than good to our skin.SPF requirement: 50 or moreSolution: Keep ……

factors like smoking, eating too much red or processed meat and frequent exposure (暴露) to UV rays from...基因修复是怎么回事？YOU probably get colds or headaches every once in a while. These are your body’s ways ……