VOA常速英语:Stem Cell Treatment Boosts Heart Function

词汇讲解：

1. promising adj. 有希望的, 有前途的,有出息的
例句：The results of the experiments are very promising.
实验的结果充满了希望。

2. pump vt. 用抽水机汲水; 给…打气; 用泵（或泵样器官等）输送
例句：The fire-brigade pumped water out of the flooded house.
消防队将水从被淹的房子里抽出去。

3. inject vt.（给…）注射（药物等）
例句：The doctor has injected him under the skin.
医生已给他皮下注射了一针。

4. maintain vt. 保养；维修，维护；养护
例句：Frank maintains his car very well.
弗兰克把自己的车子保养得很好。

5. fraction n. 小部分, 一点儿,碎片,片断
例句：The cost is only a fraction of his salary.
那项费用不过是他薪水的一小部分。

6. striking adj. 显著的, 突出的；引人注目的; 容貌出众的
例句：There is a striking difference between Jane and Mary.
简和玛丽之间有显著的差异。

7. recipient n. 接受者，接受方，受方
例句：The recipients of the prizes had their names printed in the paper.
获奖者的姓名登在报上。

8. reduction n. 减少, 缩小; 减少的量, 降价
例句：The reduction in white blood cell counts lowers resistance to disease.
白细胞总数的减少, 会降低对疾病的抵抗力。

9. rigorous adj. 严密的; 缜密的；严格的, 严厉的
例句：The planes have to undergo rigorous safety checks.
飞机必须经过严密的安全检查。

10. onset n. 开始，开端，发生，肇始（尤指不快的事件）
例句：The drug must be taken from the onset of the infection.
这种药必须在感染的最初期就开始服用。