美国宇航局深信从此以后，人们对水星的认识会大大改观。
Nasa believes much of what we thought about Mercury will need to be revised.
本周二早上，美国航天航空局发射的“信使”号探测器对水星表面进行了拍摄。
On Tuesday morning, NASA's Mercury Messenger took this photograph of the surface of Mercury.
本周二早上，美国航天航空局发射的“信使”号探测器对水星表面进行了拍摄。
On Tuesday morning, NASA's Mercury Messenger took this photograph of the surface of Mercury.
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