sep·til·lion /sɛpˈtɪljən/
一千的八乘方,百萬的七乘方
Sep·til·lion n. According to the French method of numeration (which is followed also in the United States), the number expressed by a unit with twenty-four ciphers annexed. According to the English method, the number expressed by a unit with forty-two ciphers annexed. See Numeration.
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