单词：roll leveller
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[00:04.05]第三部分 车祸伤员 [00:08.10]1.Tell me what your problem is. [00:21.12]告诉我你怎么不舒服? [00:34.14]2.Does it hurt when I press here? [00:45.73]我按这儿疼吗? [00:57.31]3.Though it's not very serious,you should rest in bed as much as possibl
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Health Report - Mouth X-Rays and the Brain; Infected Gums Do Not Cause Heart Attacks This is the VOA Special English Health Report. A new study suggests that dental X-rays may increase the risk of the most common kind of brain tumor. However, experts
2012年VOA慢速英语(四)月
This is Scientific American's 60-Second Science, I'm Cynthia Graber. This will just take a minute. Considering getting pregnant and want to influence whether you have a boy or a girl? According to new research published in the Proceedings of the Roya
Scientific American(四)月
This is Scientific American's 60-Second Science. I am Cynthia Graber. This will just take a minute. Brains can register a foods caloric value independent of our taste buds, say scientists from Duke University and from Portugal. First the scientists e
Scientific American(三)月
As summer approaches we all enjoy outdoor activities. But with sunlight becoming more intense we should protect our skin from harmful direct exposure to the sun. 随着夏日的到来，我们都喜欢进行一些户外运动。但因为日照愈加强
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