quadruplequad•ru•ple /'kwɒ-drʊ-pl/

vt 将…乘以四；使…增加三倍

• The company has quadrupled its profits in 5 years. 5年中该公司的利润增加了三倍。

vi 翻两番，增长三倍

• In the last twenty years, rice production has almost quadrupled. 在过去的20年中，水稻的产量几乎翻了两番。