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1.communications satellite 通信卫星
例句：Real-time demonstrations of the applications via communications satellite were also given.
还举办了通过通信卫星进行的实时应用演示。
2.International Space Station 国际空间站
例句：The spacecraft is set to deliver a new crew to the International Space Station.
飞船上载提供了新的人员去国际空间站。
3.hard ground 硬地
例句：He could follow a cold trail over hard ground and even over stones.
他能循着地面上甚至是石头上留下的淡淡的痕迹展开追踪。
4.take place 发生
例句：When does the wedding take place?
什么时候举行婚礼?
