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眼下,两个野心勃勃的太空探索计划正在加紧筹划之中。如果一切顺利,在不久的将来,将会有气球在外星的天空中飘浮,而且还有小船在外星的海洋上漂流。
Right now, two ambitious space exploration programs are stepping up their preparations. If all goes well, in the near future there will be balloons floating in the sky of extraterrestrials, and there will be boats floating on the alien ocean.