The Mars Reconnaissance Orbiter has been circumnavigating its namesake planet since early 2006.
火星侦察轨道器一直绕着2006年年初以来同名的星球。
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It gives you the feeling you are in the middle of a room looking around, or circumnavigating a building or object.
它能让你获得在一个房间中四下张望、或是环顾一座建筑物或一个物体时的视觉感受。
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Solar Impulse program founder Bertrand Piccard called the inaugural flight a crucial step toward fulfilling his goal of circumnavigating the globe in such an unusual aircraft.