VOA慢速英语:Much of Africa Not Investing Enough in Agricultural Research

短语讲解：

1. But the study also found that just a few countries were responsible for most of that growth.

be responsible for对…负责
例句：Everyone should be responsible for his work
每个人都应对自己的工作负责。

2. She says new technologies are needed to deal with some of the causes of hunger.

deal with 处理，对付
例句：He must deal with many difficulties.
他必须应付许多困难。

3. But Nienke Beintema says a better measure is whether a country is spending more than one percent of its agricultural money on research.

spend on 把…花费在…
例句：He doesn't spend much time on his homework.
他花在作业上的时间不多。

4. She believes most countries depend too heavily on international donations to help pay for research.

depend on 依赖，依靠
例句：His family depend on him.
他的一家人全靠他养活。

5. Ms. Bientema says countries must improve their higher education systems to get more qualified researchers.

higher education 高等教育
例句：Do you still plan to get higher education?
你还打算继续深造吗?

6. But the study found that new researchers are not being hired in some countries because of budget problems.

because of 因为，由于
例句：I came back because of the rain.
因为下雨, 所以我回来了。

7. At the same time, many older researchers are nearing retirement age.

at the same time 同时
例句：All speak at the same time.
大家同时说。