since the current world food shortage is trend-driven, the environmental trends that cause it must be reversed.

2016年6月四级真题（第一套）阅读 Section B

While height increased in Uganda and niger during the early 20th century, the trend has reversed in recent years, with height decreasing among l8-year-olds.

2019年6月四级真题（第二套）阅读 Section C

Now the question must be reversed.

出自-2012年6月阅读原文

Google has reversed this – it has simply copied all these works without bothering to ask.

出自-2011年12月阅读原文

A similar but reversed pattern was found for the activities associated with greater well-being.

2019年12月六级真题（第一套）阅读 Section B

But the development of an early-warning system has reversed that trend.

2016年6月六级真题（第二套）听力 Section C

However, the "screen time" hypothesis, advanced by researchers such as Jean Twenge, is that electronic devices and excessive time spent online may have reversed these trends in recent years, causing problems for young people's psychological health.

2019年12月六级真题（第一套）阅读 Section B

There may be a third factor that impacts both of them, or the relationship could be reversed, that is people who eat less fall asleep earlier.

2017年12月六级真题（第二套）听力? Section B?