四红

例句：

1. 1. The red dress looks stunning on her.
   她的红色连衣裙看起来非常漂亮。
2. 2.He received a fourfold increase in salary last year.
   他去年的薪水增加了四倍。
3. 3. The company plans to invest four-fold in the next five years.
   该公司计划在未来五年内投资四倍。