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
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
This switch has decreased pollution in the country's major lakes and reservoirs and made drinking water safer for people.
2018年高考英语全国卷2 语法填空 原文
While spain as a whole is heating up quickly, temperatures near the greenhouses have decreased.
2017年高考英语江苏卷 阅读理解 阅读D 原文
Fundamentally, the USPS is in a historic squeeze between technological change that has permanently decreased demand for its bread-and-butter product, first-class mail, and a regulatory structure that denies management the flexibility to adjust its operati
2018年考研真题（英语一）阅读理解 Section Ⅱ