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1. Oxford Dictionary

   Sagan, Carl

   • IPA[ˈseɪɡ(ə)n]

   英式

   • ph.
     (1934–96), American astronomer; full name Carl Edward Sagan. Sagan showed that amino acids can be synthesized in an artificial primordial soup irradiated by ultraviolet light—a possible origin of life on the earth. He wrote several popular science books, and was co-producer of the television series Cosmos (1980).
2. • 相關詞

   Sagan, Françoise

   • ph.
     (1935–2004), French novelist, playwright, and short-story writer; pseudonym of Françoise ...

   Oxford Dictionary

   Sagan, Françoise

   • ph.
     (1935–2004), French novelist, playwright, and short-story writer; pseudonym of Françoise ...

   Oxford American Dictionary

3. • 更多解釋

   Sagan, Carl

   • IPA[ˈsāɡən]

   美式

   • ph.
     (1934–96), US astronomer; full name Carl Edward Sagan. He showed that amino acids can be ...

   Oxford American Dictionary