double small

例句：

1. 1. Shedoubled her efforts to finish the projecton time.
   她加倍努力，按时完成了这个项目。
2. 2. The companydoubled its profits last quarter.
   这家公司上个季度的利润翻了一番。
3. 3.He doubled his salary after winning thelottery.
   他中了彩票后工资翻倍了。