1. 有生源說，胚種論一種學(xué)說，認為來自宇宙空間的微生物或生物化學(xué)物是地球上生命的起源，并且在宇宙的其他部分可能有適合的大氣狀況存在
   The theory that microorganisms or biochemical compounds from outer space are responsible for originating life on Earth and possibly in other parts of the universe where suitable atmospheric conditions exist.
2. 月球為地球所吸引，但由于宇宙空間中其他天體相反的引力，月球保持了固定的軌道。
   The moon gravitates to the earth, but is held in its path by opposing forces from other bodies in space.

宇宙的英語翻譯：

空間的英語翻譯：