VOA慢速英语:Researchers Hunt for Clues about Parkinson’s Disease

短语讲解：

1. The symptoms of Parkinson's differ from person to person.

differ from 与…不同
例句：Emotions differ from the prolonged emotional states that define moods.
情绪不同于长时间的情绪状态即我们所说的心境。

2. America’s National Institutes of Health says at least 500 thousand people in the United States have Parkinson’s disease.

at least 至少
例句：Read at least 30 books.
至少读30本书。

3. That number is expected to grow as the average age of the population increases.

be expected to 被期待做某事
例句：That could hardly be expected to last.
这很难预计将持续多久。

4. They compared this group to almost two thousand people without the disorder. All the people were asked about their use of pesticides, chemical fluids and metals like iron.

ask about 询问，打听；打探
例句：He didn't ask about anyone from our table.
他也没有问到我们桌边上的任何人。

5. The National Institutes of Health says about 15 percent of Parkinson’s patients are related to others with the disease.

relate to 涉及
例句：Share something I can relate to.
分享一些与我的兴趣有关的东西。

6. Many of the possible side effects are similar to those linked with the use of levodopa.

be similar to 与…相似
例句：This condition could be similar to human depression.
这一状况类似于人类的低落情绪。

7. The calcium killed dopamine-producing cells and led to signs of Parkinson’s disease.

lead to 导致
例句：That can lead to serious consequences.
这会导致严重的后果。

8. Stem cells from very early embryos are able to grow into any tissue in the body.

be able to 能够
例句：You should be able to converse comfortably.
你应该能够舒服地进行谈话。