蚕丝
史上最强天然纤维Silk is the strongest natural fiber in the world, as far as we know. Scientists long to understand just how exactly the silkworm manages the process of silk weaving, so they can r...
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体育:NBA赛况Hello again, we’re back with action from the NBA. Shaquille O’neal is turning 37 years old on Friday, but The Big Cactus as he is known out in Arizona, is turning back the clock an...
航天:“奋进号”航天飞机成功发射
航天:“奋进号”航天飞机成功发射The second time was the charm for NASA as the space shuttle Endeavour took off early Monday morning. It was supposed to launch on Sunday, but as we told you about
人生并非总是阳光明媚 朗费罗
诗歌It Is Not Always May by Henry Wadsworth Longfellow The sun is bright, - the air is clear, The darting swallows soar and sing. And from the stately elms I hear The bluebird prophesying Sp...