“NGC 6744”可以造什么句,NGC 6744造句
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1、Viewed from Earth, NGC 6744 is about two-thirds the size of a full moon, but it's so faint you can't see it without a backyard telescope.
1、Viewed from Earth, NGC 6744 is about two-thirds the size of a full moon, but it's so faint you can't see it without a backyard telescope.