2001-09-27 Planning for Safer Buildings
This is the VOA Special English Science Report. Experts are beginning to study ways to secure large buildings against terrorist attacks. They are reacting to the attacks that destroyed the…
VOA英语教学网 - VOA LEARNING ENGLISH
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This is the VOA Special English Science Report. Experts are beginning to study ways to secure large buildings against terrorist attacks. They are reacting to the attacks that destroyed the…