The high point of President Medvedev's stay in the United States will be his visit to Silicon Valley - an area in northern California known for its high-tech companies, venture capitalists and forward-looking entrepreneurs.

VOA: standard.2010.06.18

I think that it makes it hard for that particular area of scientific research to go forward.

我想在这方面的科学研究很难推进。

生物克隆是热点问题 - SpeakingMax英语口语达人

I think that it makes it hard for that particular area of scientific research to go forward.

我想在这方面的科学研究很难推进。

生物克隆是热点问题 - SpeakingMax英语口语达人