单词：congenic strains
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Mrs. Lee: Is this your dog? Tony : Yes, it is. Why? Mrs. Lee: Well, your dog chases my cat. Tony : Oh, I'm sorry. Mrs. Lee: Please keep your dog on a leash. Tony : Yes, ma'am. 这是你的狗吗? 李太太：这是你的狗吗? 托 尼：是的。怎么
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What are the most difficult and useful things people have to learn in their 20s？ 二十几岁的人最该学也最难学的是什么？ 获得10.1k好评的回答@Brandon Chu These are the most difficult things I've learnt/am still learning. 这些是
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JUDY WOODRUFF: Next, a long looked-for breakthrough in the battle against the deadly Ebola virus. One experimental vaccine has been shown to be 100 percent effective on humans. Hari Sreenivasan has the story. HARI SREENIVASAN: The results of a two-ye
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Tuberculosis Found in 18th Century Bodies 结核病发现于18世纪的尸体 Researchers have found tuberculosis bacteria in 200-year-old human remains. The researchers say the discovery is surprising. The remains came from a Hungarian church where
2015年VOA慢速英语(四)月
英语作文-中考 Directions： For this part you are allowed thirty minutes to write a composition on the topic Is Stress a Bad Thing？ You should write no less than 150 words and base your composition on the outline （given in Chinese） below： 1.有的
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UNITED NATIONS, April 15 (Xinhua) -- A new polio vaccine will be rolled out next week to replace the one which protects against all three strains of wild poliovirus. It marked the beginning of the largest and fastest globally coordinated rollout of a
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