in septuplicate

例句：

1. 1. The teacher explained the problem in seven parts.
   老师将问题分成了七部分来解释。
2. 2.The company's profits have increased by sevenfold since its founding.
   这家公司自成立以来利润增长了七倍。
3. 3.We need to increase our output by seven times to meet the demand.
   我们需要提高产量七倍以满足需求。