VOA慢速英语:Brains Gain From Physical Activity by Older People

词汇讲解：

1. stroke n. 中风
例句：She had a stroke and was unable to walk again.
她中风后再也不能走路了。

2. ability n. 能力; 力量
例句：The ability to use a language can be acquired by the act of using the language.
运用语言的能力只能通过不断练习才能获得。

3. worldwide adj. 全世界的, 世界范围的
例句：His fame is worldwide.
他的名声享誉全世界。

4. capture vt. 引起(注意);迷住; 占领,夺得;获得
例句：The singer captured the hearts of audience.
这位歌唱家令听众倾倒。

5. chore n. 零星工作(尤指家常杂务)
例句：As a child one of my chores was to feed the animals.
小时候我的杂活之一就是喂动物。

6. label vt. 把…列为; 贴标签于
例句：The phrase is labeled as slang in the dictionary.
这个短语在这本字典里被注为俚语。

7. reduce vt. 缩减, 减少; 降低
例句：We must try our best to reduce the likelihood of war.
我们必须尽最大努力减少战争的可能性。

8. expenditure n. 花费, 使用
例句：By practicing thrift we can cut out a great deal of unnecessary expenditure. 
通过节约我们可以省去大量不必要的开支。

9. lower vt. 削弱; 削减; (使)降低; (使)跌落
例句：A cold had lowered her resistance.
感冒已削弱了她的抵抗力。

10. obvious adj. 明显的; 显而易见的
例句：It is obvious that he is wrong.
显然他错了。