Sales have quintupled over the past few years.
過去幾年中銷售量較原來的增加了四倍。
牛津詞典
HNC theory thinks that abstract concepts have complicated multiplicity, which was generalized as Quintuple.
HNC理論認為,抽象概念具有復雜的多元性表現(xiàn), 可以概括為五元性,用五元組表示.
期刊摘選
"The population of China quintupled"