第3145期:Polio eradication still faces challenges

英语每日一听 | 每天少于5分钟 by 晨听英语

At one time polio paralyzed hundreds of thousands of children every year. 曾经，小儿麻痹症每年都会使数十万儿童瘫痪。 In Africa alone, it afflicted 75,000 children annually. That's no longer the case. 仅在非洲，每年就有7.5万名儿童受此折磨。现在情况已经不一样了。 We have...View more