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Thousand of spectators gathered to watch the liftoff of the space shuttle.成千上万的观众聚集在一起观看航天飞机发射升空。The space shuttle orbited a communications satellite.太空梭将一颗通讯卫星送入轨道。The countdown has begun for the launch later today of the American space shuttle.美国航天飞机的发射已于今天晚些时候进入倒计数。The space shuttle has completed its second orbit.航天飞机已沿轨道绕了第二圈。The space shuttle is being used more and more for commercial purposes.航天飞机被越来越多地用于商业目的。NASA has stopped the countdown for the space shuttle mission because of technical problems.由于技术问题，美国国家航空航天局已经停止了发射航天飞机的倒计时准备。The space shuttle needs to be controlled precisely during reentry.航天飞机返航时需要精确控制。A replica of the space shuttle is parked at the center's entrance.一架航天飞机的复制品停在该中心的入口处。A hydrogen leak forced NASA to ground the space shuttle.氢气泄漏迫使美国国家航空航天局停止了航天飞机的发射。The space shuttle will orbit a weather satellite.太空梭将把一个气象卫星送入运行轨道。It seemed that the space shuttle was about to reenter.航天飞机似乎即将重返大气层。The space shuttle returned safely to earth today.航天飞机今天安全返回地球。The space shuttle Atlantis is scheduled to dock with Russia's Mir space station.亚特兰蒂斯号航天飞机计划与俄国和平号空间站对接。The space shuttle has safely reentered the Earth's atmosphere.航天飞机已安全返回地球大气层。The countdown has begun for the launch later today of the American space shuttle.美国航天飞机的发射已于今天晚些时候开始进入倒计时。Thousands of spectators watched as the space shuttle lifted off.航天飞机发射升空时，成千上万的观众在场观看。The space shuttle launch was on television stations from coast to coast. 全国电视台都播出了航天飞机的发射场景。The space shuttle has reentered the Earth's atmosphere.航天飞机现已重返地球大气层。The space shuttle remained earthbound because of a technical fault.因为出现技术故障，航天飞机尚未能升空。The space shuttle Atlantis returned safely to earth today. “亚特兰蒂斯”号航天飞机今天安全返回地球。NASA has used the space shuttle to study how materials perform in a weightless environment.美国国家航空航天局利用航天飞机研究物质在失重环境中的表现。The space shuttle crew conducted experiments on plants and cells in a special lab.航天飞机上的工作人员在一个特殊的实验室里对植物和细胞进行实验。 |