double current

例句：

1. 1. The price of the product doubled after the promotion.
   产品在促销后价格翻倍。
2. 2. The company is looking to double its profits in the next five years.
   该公司计划在未来五年内将其利润翻一番。
3. 3. He doubled his efforts to finish the project on time.
   他加倍努力以按时完成项目。