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2013-05-23 12:21
求翻译：The Advantages and Disadvantages of Space Travel.It is now over 30 years since man fist walk on the moon. Man has not yet reached Mars, although unmanned spacecrafts have been sent there．The case for more research into space travel and more flights to othe planets is a complicated one.是什么意思？ 待解决
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The Advantages and Disadvantages of Space Travel.It is now over 30 years since man fist walk on the moon. Man has not yet reached Mars, although unmanned spacecrafts have been sent there．The case for more research into space travel and more flights to othe planets is a complicated one.
问题补充： |
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
