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Well, we've strayed quite a way from space exploration.哎呀,我们的话题离太空探险太远了。The moon landing is a landmark in space exploration.登月是太空探索史上的里程碑。Another by-product of space exploration is a growing awareness of this planet's fragile environment.太空探险的另一个意外收获,是人们对地球的脆弱环境意识越来越强。A part of the nation's treasury is spent on space exploration.一部分国库资金用于太空探索。This book is indispensable to anyone interested in space exploration.本书是所有对太空探险感兴趣的人必读的。The history of space exploration is a fascinating topic.太空探索史是一个引人入胜的话题。The technology heralded a new age of space exploration.这项技术预示着太空探索的新纪元。Humanity has made great progress in space exploration and medicine.人类在太空研究和医学上取得了很大进展。The history of space exploration is an exciting drama.太空探险的历史真是一系列富于戏剧性的紧张场景。 |