20xx英語(yǔ)演講稿范文thespaceshuttle(留存版)
【正文】 shuttle. but they, the challenger seven, were aware of the dangers, but overcame them and did their jobs brilliantly. we mourn seven heroes:michael smith,dick scobee,judith resnik,ronald mair,ellison onizuka,gregory jarvis, mourn their loss as a nation togeth
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