单词：
单词： 相关文章
And lastly, here's Destin, from Smarter Every Day, 最后是《每天聪明一点点》的德斯丁， talking about the conservation of angular momentum, and, since it's YouTube, cats: 为我们讲述动量守恒，由于是在YouTube上，所以他用
TED演讲科技篇
By David Gollust Washington 14 September 2007 Christopher Hill speaks during a press briefing about a bilateral meeting with North Korean envoys in Geneva, Switzerland, 31 Aug. 2007 The chief U.S. envoy to the negotiations on ending North Korea's nuc
2007年VOA标准英语（九月）
It was another day of bullhorn diplomacy by Iran's top nuclear officials, who appear to be struggling to halt momentum for a new round of international sanctions. The head of Iran's atomic energy agency, Ali Akbar Salehi, began the day by calling IAE
VOA标准英语2010年(三月)
By Kurt Achin Seoul 12 March 2008 South Korea's newly appointed foreign minister is warning talks aimed at ending North Korea's nuclear weapons capabilities could stall over unresolved issues related to the North's promised declaration. However, offi
VOA标准英语2008年（三月）
By Kurt Achin Beijing 12 February 2007 Six-nation talks in Beijing aimed at ending North Korea's nuclear weapons programs are to be extended into a sixth day, after negotiators had managed to bridge some gaps. VOA's Kurt Achin reports from Beijing, w
2007年VOA标准英语（二月）
Summing up the five day tour - Foreign Minister Wang Yi said the trip had testified to China's continued efforts to promote mutually beneficial cooperation, and reaffirm China's commitment to safeguarding global nuclear security. Xi Jinping's time in
2016CRI中国国际广播电台