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1. The new balloon-type rocket is expected to revolutionize space travel.
新型气球式火箭预计将彻底改变太空旅行。
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2. The balloon-type rocket has the potential to reach orbit within a few years.
这种气球式火箭有望在未来几年内进入轨道。
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3. The balloon-type rocket was designed to be lightweight and easy to launch.
这种气球式火箭设计轻便且易于发射。