E-book sales are up 146 percent over last year, while hardback sales increased 6 percent and paperbacks decreased 8 percent.
出自-2014年6月阅读原文
The overall number of bacteria on the surface mattered more, and this decreased over time after the initial introduction.
2018年12月四级真题（第三套）阅读 Section B
英语六级真题
But Smith counters that if you factor in the hidden cost of government corn subsidies, environment degradation, and decreased human heath and animal welfare, grass-fed is the more cost-effective model.
2019年12月六级真题（第三套）阅读 Section B
That sounds pretty terrible, but the loss of life has decreased by a factor of 10 simply because we are getting better at warning people.
2016年6月六级真题（第二套）听力 Section C
柯林斯高阶英汉双解学习词典释义
V-ERG
(使)减少;(使)减小;(使)降低
When something decreases or when you decrease it, it becomes less in quantity, size, or intensity.