VOA慢速英语:Study Finds Treatment Cured Sickle Cell in Adults

例句：They used to donate large sum of money to the Red Cross every year.
      他们过去每年都向红十字会捐献大笔的钱。

2.marrow n.骨髓;脊髓;髓

例句：It was so cold that he felt frozen to the marrow.
       天气太冷了, 他感到寒冷刺骨。

3.deform vt.使变形, 使残废;丑化;改变…的外形;损毁…的形状;使成畸形

例句：He was born with a severely deformed foot.
      他生下来就有一只严重畸形的腿。

4.harden vt.vi.(使)变硬; (使)坚固; (使)硬化

例句：The snow hardened until ice was formed.
      雪成冰后变硬了。

5.replace vt.取代, 代替; 更换, 替换, 更新

例句：His deputy replaced him as leader.
      他的副手接替他当了领导。

6.risky adj.冒险的;危险的

例句：It all sounds decidedly risky to me.
      对我来说，这一切听起来太危险了。

7.match vt.vi.(使)相配; (使)相称

例句：Those two shoes don't match.
      那两只鞋不是一双。

      The colours match well.
      颜色很协调。

8.majority n.多数, 大多数; 半数以上

例句：A majority vote enabled the passage of the resolution.
      多数人投赞成票使议案得以通过。

9.identify vt.认出, 识别
 
例句：Would you be able to identify the man who robbed you?
      你能够认出那个抢你东西的人吗?

10.costly adj.昂贵的, 代价高的,花钱多的

例句：It would be too costly to repair the car.
      修理这辆汽车要花很多钱。