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[00:03.20]Unit 7 The Sea Lesson 3 The Sea World [00:07.92]UNDERwater WORLD [00:10.16]The Best Plance To See Sea Creatures [00:13.62]Polar World [00:15.75]We have polar bears and a real iceberg too! [00:19.45]You can only see a small part of it [00:21
北师大版高中英语模块3
Visionary Ideas Could Transform Future NASA Missions NASA, the U.S. space agency, has awarded $3 million in grants for 30 proposals which explore new ideas for Americas next generation space program. The proposals reflect wide-ranging visions of new
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今天我们要学的词是underwater. Underwater is spelled u-n-d-e-r-w-a-t-e-r. Underwater本意是水下的，但用在商业上可以指资不抵债。美国房屋市场次贷危机产生了许多underwater mortgage，就是指房屋按揭额超过
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Scientists Testing Space Propulsion by Light 科学家测试太阳能动力 Can the sun provide power for a spaceship to travel to the edge of our solar system? The answer may come from a small satellite. A Delta V rocket carried the satellite into s
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NASA Working Toward Mission to Mars The head of the National Aeronautics and Space Administration, or NASA, said that the space agency is on track to land people on Mars in the 2030s. Charles Bolden is the administrator for NASA. He said that five ye
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