triple
- adj. 三倍的；三方的
- n. 三倍数；三个一组
- vi. 增至三倍
- vt. 使成三倍
考试真题
- Between now and 2050, the urban population of Africa could triple.
2017年12月四级真题（第三套）阅读 Section C
- The team at Stanford investigated the aquifers below this depth, and found that reserves may be triple what was previously thought.
2018年12月四级真题（第一套）阅读 Section C
- BrightLine iTV, which designs and sells interactive ads, says interest has surged: it expects its revenues almost to triple this year.
出自-2016年6月阅读原文
- BrightLine itV, which designs and sells interactive ads, says interest has surged: it expects its revenues almost to triple this year.
2016年6月六级真题（第三套）阅读 Section C