单词：polluted estuary
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Blue Crabs: A Messy Meal from the Chesapeake Bay What have ten legs, two of them large claws, a hard shell cover, and live in oceans, fresh water, and on land? Crabs, of course! There are thousands of different kinds of crabs all over the world. They
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[00:04.41]Lesson 33 [00:07.76]1.Dialogue [00:11.60]Jackie is talking to Yang Pei about a conference which Jackie has just been to. [00:18.96]What was the conference like? [00:22.41]Very interesting.It was called Saving the earth [00:27.27]and it was
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[00:38.30]1.What are the school children going to look for? [00:44.54]Seaweeds,fish,plants,all living things. [00:55.69]2.What are they planning to do after this? [01:02.46]Have a swim,have a picnic. [01:09.90]3.What is the problem? [01:14.87]They ca
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LOS ANGELES, April 27 (Xinhua) -- Air pollution poses a threat to the health of about 154 million Americans -- or more than half of the U.S. population, the American Lung Association (ALA) said on Wednesday. The air is so polluted in some areas that
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Aviation capacity 航空动力 Limited skies 领空限制 Expanding airport capacity in the south-east is a bet on the future of travel 扩大东南地区的航空能力对旅行的未来至关重要 EVEN before Sir Howard Davies, an economist mullin
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Housing 楼市 Modest plans 温和战略 The government goes back into housebuilding 政府重回地产建设 WHEN George Osborne is spotted outsideWestminster, he is very often making an appearance on a building site, wearing a fluorescent safety ja
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