成比例

例句：

1. 1. The teacher explained the problem in a way that made sense to everyone.
   老师以每个人都能理解的方式解释了这个问题。
2. 2.The company's profits have increased by 30% since last year.
   公司的利润自去年以来增加了30%。
3. 3.The new policy has led to a 5% increase in sales.
   新政策导致销售额增加了5%。