一块阿波罗月球陨石所引出的疑团可能最终会被解开。
A mystery thrown up by the Apollo moon rocks may finally have been solved.
记住月球上没有大气层，所以很小的陨石也能造成洞。
Remember the moon's lack of atmosphere means that even small meteoroids make craters.
记住月球上没有大气层，所以很小的陨石也能造成洞。
Remember the moon's lack of atmosphere means that even small meteoroids make craters.
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