quad·ru·ple
verb/ˈkwɒdrʊpl/
/kwɑːˈdruːpl/
[intransitive, transitive]Verb Forms
| present simple I / you / we / they quadruple | /ˈkwɒdrʊpl/ /kwɑːˈdruːpl/ |
| he / she / it quadruples | /ˈkwɒdrʊplz/ /kwɑːˈdruːplz/ |
| past simple quadrupled | /ˈkwɒdrʊpld/ /kwɑːˈdruːpld/ |
| past participle quadrupled | /ˈkwɒdrʊpld/ /kwɑːˈdruːpld/ |
| -ing form quadrupling | /ˈkwɒdrʊplɪŋ/ /kwɑːˈdruːplɪŋ/ |
- quadruple (something) to become four times bigger; to make something four times bigger
（使）变为四倍 - Sales have quadrupled in the last five years.
在过去五年中，销售额已增长至以前的四倍。
Word Originlate Middle English (as a verb): via French from Latin quadruplus, from quadru- ‘four’ + -plus as in duplus (from duo ‘two’). - Sales have quadrupled in the last five years.