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beacon, ['bi:kən] n 灯塔（位于海岸，用以导航）；烽火（警告敌人的接近） 【例】Fires beaconed the darkness 火光驱散了黑暗。 【记】bea＝bead珠子，夜明珠，con＝can能。夜明珠能在晚上导航。 烽火
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This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? Man-made light sources can really throw animals for a loop. Moths can't tear themselves away from lightbulbs, and newly hatched sea turtles often shun moonlit ocean
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Business Aviation Flight to the future 商业 航空 飞向未来 Modernising creaking air-traffic systems will be a huge task 空中交通系统现代化进程任重道远 THESE days a $15,000 car comes with GPS satellite navigation fitted as standa
经济学人商业系列
Modernising creaking air-traffic systems will be a huge task 空中交通系统现代化进程任重道远 THESE days a $15,000 car comes with GPS satellite navigation fitted as standard. But a $150m airliner still has to be guided through the skies
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Leaders 社论 America divided 美利坚分众国 Politicians are making Americans miserable. The mid-terms offer a chance to change 政客们让美国民众痛苦不堪，中期选举是一个改变的机会 As America prepares to go to the polls on
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[00:12]Day 9 [00:14]assist [00:16]Two men are assisting the police in their enquiries. [00:21]bargain [00:23]We made a bargain on the spot that [00:25]I would do the work and he would supply the money. [00:30]barrier [00:32]All the institutional and
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