单词 | dark nebula |
例句 | DEFINITIVE EXAMPLES 权威例句〔Coalsack〕A dark nebula, one of the nearest to Earth, that appears in the southern Milky Way.煤袋:最接近地球的黑色星云之一,见于银河系南部美国传统〔Coalsack〕A similar dark nebula in the Northern Hemisphere near the constellation Cygnus.黑色星云:北半球接近天鹅座的一种类似黑色星云美国传统 |
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