VOA常速英语:Heart Failure Drug Not as Effective on US Patients

短语讲解：

1. Before new drugs are approved for use, they go through a multi-step approval procedure.

go through经历
例句：The country has gone through too many wars.
这个国家经历了太多的战争。

2. For many new drugs, the biggest market may be in Europe and North America, but when the testing moves out of the lab and into human subjects, increasingly the venues include low- and middle-income countries.

move out迁出, 搬出
例句：We're moving out of our old house next week.
下星期我们要搬出老房子。

3. We know that there's differences in the way racial and ethnic groups handle drugs, for example.

for example例如, 譬如
例句：There are many sources of air pollution; exhaust fumes, for example.
空气污染有许多来源, 例如废气。

4. Cultural and social differences, he says, may be reflected in a willingness to participate in a clinical trial or follow instructions if you do.

participate in参加
例句：How many people participated in the opening ceremony?
多少人参加了开业典礼?

5. And what you don't want to have is a situation that you approve a drug or a device based on a global trial, and then realize five years later that, well, it didn't work in this part of the world or that part of the world.

base on使建立在…基础上
例句：Action should be based on solid facts.
行动应有确凿的事实为依据。