单词：epoxy adhesives
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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. The common method of closing a surgical incision is simply to stitch the patient up. There are some issues, though. Good stitching can be challenging,
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Laden with plastic bags that are almost too heavy to carry, we meet Rika Wenjing, a 24-year-old accountancy graduate from Wuhan, the capital of Hubei province. 我们见到了24岁的Rika文静（音译），这位来自湖北省武汉市的会计专业
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GWEN IFILL: Next: replacing surf shops with start-ups, as tech titans move to catch some rays and some waves.Steve Goldbloom reports. STEVE GOLDBLOOM: In San Francisco, computer programmers are like rock stars. Here in Los Angeles, the rock stars are
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The scent of a new car can be enticing in showrooms, and even intoxicating in its appeal. Theres a good reason for that. That new car smell comes from an assortment of chemicals, some of which can be highly toxic. 展厅中的新车会散发出迷人的
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vice FM to Visit Beijing to Repair Ties The Japanese government has decided to dispatch its Foreign top official to China on a two- day tour to repair frayed bilateral ties over islands in the East China Sea. Deputy Foreign Ministe
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