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。

youdao

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。

youdao

Poor countries are often defined by their weak health, education and income measures, but conditions in Somalia are mostly too wretched to record.

国家往往因卫生、教育和收入指标低而被定义为贫穷，但是索马里的条件实在太恶劣，以至于无从记录。

youdao

But mostly it is because fertility levels are dropping sharply in most poor countries and all rich ones.

ECONOMIST: A Survey of the 20th Century

Some 40 countries, mostly in Africa, were sufficiently poor and indebted to be eligible for the 1996 debt-relief plan.

ECONOMIST: Debt forgiveness