| This leads to an increase in diseases like diarrhea, the second leading cause of death in children under five. 这也导致了很多疾病的发生，如腹泄，五岁以下儿童致死疾病的第二大罪魁。 Floods, droughts, pollution and climate change have created even more problems. 洪水，干旱，污染和气候变化诱发了更多的问题。 The Millennium Development Goals for two thousand fifteen call for a fifty percent decrease in the number of people without safe drinking water and basic sanitation. 2015 年的千年发展目标是，使无安全饮用水和基础卫生设施的人数降低 15 ％。 Scientists, governments and aid organizations around the world are increasing their efforts to meet these goals. 全世界的科学家，政府和援助组织正在为这个目标加倍努力。 Still the U.N. says there is much work to be done. 联合国也称还有很多工作需要做。 |
