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[00:04.00]flight [00:06.22]n.飞翔,飞行;航班;航程;楼梯的一段 [2]逃跑,溃退 [00:08.44]fling float flock [00:11.62]vt.(用力地)扔,抛,丢 v./n.漂浮,浮动 n.(禽,畜等的)群;大量v.群集,成群 [00:14.81]flood floor [0
Bladeless Wind Generator Safe for Birds Wind turbines are tall structures with large blades used to produce electricity. They are useful sources of low-cost, renewable energy. But they can also be deadly to birds and bats. The turbines large blades t
RAY SUAREZ, HOST: After Harvey and Irma, the hurricane season wasn't over. Hurricane Maria made landfall on Puerto Rico as a massive Category 4 storm. Months later, the power supply is still spotty, and thousands of homes still rely on generators. Da
JUDY WOODRUFF: Next: the possibilities of getting more energy through water. Humans have long harnessed the power of water to perform work. In modern time, hydroelectricity, generated by the power of water flowing through turbines at the base of dams
Business 商业报道 Air conditioning 空调行业 Cool innovation 很酷的发明 An upstart hopes to make rival cooling companies sweat 一家新贵公司有望使制冷方面的竞争对手汗流浃背 ON A hot July day in 1902, the world's first
Business. 商业 Air conditioning 空调行业 Cool innovation 很酷的发明(制冷方面的发明) An upstart hopes to make rival cooling companies sweat 这个挑战者渴望把与之竞争的空调公司逼出汗来 ON A hot July day in 1902