单词：grooved gearing
单词：grooved gearing 相关文章
nobody likes getting shots, but what if you could make the needles so tiny that they broke skin painlessly. engineers from top university have created such micro needles, made from major protein in silk, fibrolin. the work is in the journal of advanc
Scientific American(十二)月
From VOA Learning English, this is the Health Lifestyle report. When trying to make a successful career, which is better: being a generalist or a specialist? In other words, should you generalize and know a little about a lot of things? Or should you
2018年VOA慢速英语(十)月
Could a Tattoo Cost You a Job? 文身会让你失去工作么? In the 1960s U.S., a tattoo was usually a sign of anti-social or illegal activity. Few people had them. Today, at least one in five Americans has a tattoo, including sports stars, actors
2015年VOA慢速英语(六)月
Katia: Hello Felipe, how are you? Felipe: Hello, I'm fine thank you and you? Katia: Good. Listen I was reading about the Galapagos and I think that you might know a lot more than what I can find in the books. Can you tell me a little bit more about G
原版英语对话1000个
Katia: Hello Felipe, how are you? Felipe: Hello, I'm fine thank you and you? Katia: Good. Listen I was reading about the Galapagos and I think that you might know a lot more than what I can find in the books. Can you tell me a little bit more about G
英语趣味课堂
LONDON, Aug. 9 (Xinhua) -- Chen Ruolin collected a high 422.30 points for the title of women's 10m platform diving at London Olympic Games on Thursday. It is the 200th gold medal China won from all the summer Olympic Games it participated in. Brittan
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