Sales have quintupled over the past few years.
过去几年中销售量较原来的增加了四倍。
牛津词典
HNC theory thinks that abstract concepts have complicated multiplicity, which was generalized as Quintuple.
HNC理论认为,抽象概念具有复杂的多元性表现, 可以概括为五元性,用五元组表示.
期刊摘选
"The population of China quintupled"