the world's No. 1 killer 世界头号杀手

　　A new study has identified pollution as the world's No. 1 killer.一项新的研究已经确定环境污染是世界头号杀手。

　　is responsible for more premature deaths 是造成人类过早死亡的首要原因

　　Pollution is responsible for more premature deaths than war, terrorism, natural disasters, smoking and disease.与战争、恐怖主义、自然灾害、吸烟和疾病相比，污染是造成人类过早死亡的首要原因。

　　threatens fundamental human rights 威胁到基本人权

　　Pollution threatens fundamental human rights, such as the right to life, health, well-being, safe work as well as protections of children and the most vulnerable.污染威胁到基本人权，如生命权、健康权、福祉权、安全工作权以及对儿童和最弱势群体的保护。

　　pollution-related deaths 与污染相关的死亡

　　The large majority of pollution-related deaths take place in developing countries.绝大多数与污染相关的死亡发生在发展中国家。

　　is tied to slow economic development 与经济发展缓慢有关

　　Pollution is tied to slow economic development in both rich and poor nations无论是富国还是穷国，污染都与经济发展缓慢有关。

　　a top goal 首要目标

　　Reducing pollution must be a top goal.减少污染是首要目标。

　　malnutrition 营养不良问题

　　It says that solving this problem would lead to solutions to other crises, including malnutrition and rising temperatures on Earth's surface.

　　它说，解决这个问题将使得其他危机得以解决，包括营养不良问题和地球表面温度上升。