单词：effective-sectional area
[网络] 有效截面积；净截面积；有效剖面面积
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New Generation Revolutionizes Environmental Activism Environmental activists have relied on public pressure, boycotts and confrontation to advance their cause over the past few decades. Now, a new generation of eco-warriors is revolutionizing environ
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Todd: Well, what about Area 51? Jonathan: Area 51 i something people always talk about. I'm not really sure what to believe but I essentially think that something's that's a secret that large could never be covered up for such a long period of time.
原版英语对话1000个
secondary insider 次要的内幕人士 secondary listing 第二上市 secondary market 二级市场；次级市场；第二市场 secondary mortgage market 第二按揭市场 secondary production 第二
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DAR ES SALAAM, June 23 (Xinhua) -- Turkey has expressed interest to create a free-trade and investment area between Turkey and the East African Community (EAC), Xinhua learnt on Wednesday. Turkish Ambassador(大使) to Tanzania Sander Gurbuz said his
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