现在，冥王星可能是个矮行星，但是，亲爱的克莱德，在我书中你仍然是第一个发现行星的美国人。
Pluto may be a dwarf planet now, Clyde baby, but you're still the first American to discover a planet in my book.
唯一的另一个已知的以如此奇怪的角度运行的例子是冥王星，直到它降级为矮行星。
The only other known example of such an oddly angled orbit was Pluto, until its demotion to dwarf planet status.
现在归类于矮行星的冥王星是那么小，那么远，对天文学家来说，其表面一直是个谜。
Pluto, now classed as a dwarf planet, is so small and so distant that its surface has been a mystery to astronomers.
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