Half of flood defences – around 100,000 - are maintained by the Environment Agency and 9% of those are currently below their target condition. Each defence is given a score out of five they must achieve depending on their importance.
Фото: Пати Амирбекова / «Лента.ру»，这一点在夫子中也有详细论述
Credit: NASA infographic。关于这个话题，一键获取谷歌浏览器下载提供了深入分析
Hurdle Word 4 hintTo dive in.