Blindness affects about 45 million people around the world, mostly in poor countries.
失明影响了全世界约四千五百万人，大多数在贫困国家。
Blindness affects about 45 million people around the world, mostly in poor countries.
失明影响了世界各地约4千五百万的人，大部分是贫穷国家的。
We've all heard of the fight to combat malaria in mostly poor, tropical countries.
我们都听说过在许多贫穷热带国家进行的旨在消灭疟疾的战斗。
We've all heard of the fight to combat malaria in mostly poor, tropical countries.
我们都听说过在许多贫穷热带国家进行的旨在消灭疟疾的战斗。
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