拉丁美洲的老年痴呆症患病率高

词汇讲解：

1. collapse vi. 崩溃, 突然失败
例句：His health collapsed from undernourishment.
他的身体因营养不良而垮了。

2. laundry n. 洗好的衣服; 待洗的衣服
例句：There's a lot of laundry in the basket.
筐子里有许多要洗的衣物。

3. frustrating adj. 产生挫折的；使人沮丧的，令人泄气的
例句：I found the delays intensely frustrating.
我觉得这些延误极其令人沮丧。

4. constitute vt. 构成, 组成
例句：Twelve months constitute a year.
12个月为一年。

5. proportion n. 部分; 份儿
例句：A large proportion of the children come to school by bus.
很大一部分儿童乘公共汽车上学。

6. respondent n. 被告
例句：He stated that he had never seen the respondent.
他说他从未见过被告。

7. incidence n. 发生率, 影响范围
例句：This area has a high incidence of crime, disease, unemployment, etc.
这个地区的犯罪率、发病率、失业率等很高。

8. anecdotal adj. 轶事的,趣闻的
例句：Their research was based largely on anecdotal evidence.
他们的研究主要以趣闻为基础。

9. exposure n. 揭发, 揭露
例句：I threatened them with public exposure.
我扬言要公开揭发他们。

10. stigma n. 耻辱的标记, 瑕疵
例句：It's a stigma to ask for money.
要钱是一种耻辱。