Malaria continues to represent a significant impediment to the social and economic development of the world's poorest people through the direct cost of treating and preventing the illness and through lost productivity.
2． 疟疾继续对世界上最贫穷人民的社会和经济发展构成重大阻碍，一方面是治疗和预防疟疾庞大的直接费用，另一方面是丧失的生产力。