二倍地

例句：

1. 1. The price of the product has doubled since last year.
   该产品的价格自去年以来翻了一番。
2. 2. He doubled his efforts to finish the project on time.
   他加倍努力以按时完成这个项目。
3. 3.She doubles her efforts when she works with others.
   她当与其他人合作时加倍努力。