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Unit 28 Death Valley503 死亡谷 死亡谷的名字虽然不好，名声也欠佳，但这里并非只有黄沙和岩石的不毛之地。它是一个风景优美的地方，是许多动植物，甚至人类的家园 Death Valley doesn't sound like a very inviting place. It is one of the hottest places in the wo
2006年星火30篇考研词汇
It is a staggering 2,700 miles longer than the first Great Wall of the Emperor Qin. There is no wood, water or stone in the desert. But the Han managed to build a wall that has resisted 2,000 years of
万里长城
And many never returned home, ending up in graveyards like this one. Large tombs for generals, small ones for the soldiers, and all of them died defending the Great Wall. But the soldiers' misery did
万里长城
From the air, Namibia looks almost uninhabited . Boom towns near depleted diamond mines lie abandoned. Shipwrecks dock the beaches of the skeleton coast. Salt pans, the largest in Africa , reflect sterile white light. 1,200 feet high sand dunes cres
国家地理2008年
From the air, Namibia looks almost uninhabited. Boom towns near depleted diamond mines lie abandoned. Shipwrecks dock the beaches of the skeleton coast. Salt pans, the largest in Africa, reflect sterile white light. 1,200 feet high sand dunes crest o
自然百科2008年
If we have been wet, then we want to look for nutrients and food sources that could support microbes. The water ice is proof of a valuable resource for any life forms still clinging(附着) beneath the surface and for future travelers. We now know th
自然百科2012年