VOA慢速英语:Sweet Potatoes as Medicine

短语讲解：

1. According to Mr. de Brauw showing the impact of a food-growing project on health is very important, or as he says, a big deal.

according to 根据
例句：Answer a fool according to his folly.
按愚人的蠢话回答愚人。

2. One expert goes so far to say that supplements are a Band-aid -- a short-term fix to a long-term problem.

so far 到目前为止
例句：Now, I have so far merely made assertions.
直到现在为止，我只是在作论述。

3. She was not part of this study but talked about it with VOA’s Steve Baragona on Skype.

talk about 讨论，谈论
例句：He went on to talk about his accident.
他接着谈到了他的意外事故。