一些科学家认为星云中的错综复杂的结构表明，它是一个双恒星系统。

Some scientists think the nebula's intricate structures suggest it is a double-star system.

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一些科学家认为星云中的错综复杂的结构表明，它是一个双恒星系统。

Some scientists think the nebula's intricate structures suggest it is a double-star system.

youdao