喷管; 扩散喷管; 漫射体; 集气管

NPR 2010-03-25

From NPR News in Washington, Im Korva Coleman. President Obama has signed an executive order spelling out limits on federal funding for abortion under the new health care law. NPRs Scott Horsley reports. Michigan Congressman Bart Stupak and other ant

发表于:2018-12-02 / 阅读(78) / 评论(0)

2010年NPR美国国家公共电台3月

洪恩英语第四册 09 Jeff,be as calm as you can

[00:02.05]LESSON 9 [00:04.10]JEFF，BE AS CALM AS YOU CAN。 [00:06.44]杰夫，尽可能地冷静 [00:08.78]Are you ready? [00:13.26]准备好了吗？ [00:17.74]Yeah,I'm as ready as I can be for the first day of rehearsal. [00:21.81]准备好了。为

发表于:2018-12-25 / 阅读(37) / 评论(0)

洪恩环境英语

地道美语听力播客:An Interview with Dr. Jeff

This is a special version of our podcast. There's no script for the podcast, because it is an unscripted interview by Dr. Lucy Tse with the host, Jeff McQuillan. Here are the questions that she asks: - Why did you decide to start ESL Podcast? - How d

发表于:2019-01-01 / 阅读(44) / 评论(0)

地道美语播客

2006年VOA标准英语-Congressman Jefferson Denies Wrongdoingv

By Dan Robinson Capital Hill 22 May 2006 A U.S. congressman, who is the target of a bribery investigation by federal authorities, says he intends to fight corruption allegations. A long-running federa

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2006年VOA标准英语（五月）

VOA标准英语2010年-US Military Committed to Haiti Aid Eff

The Haiti earthquake created a huge and urgent need for water, food, medicine and other services - a need that required an international governmental and private response. But the only organization with the kind of capability to deliver the magnitude

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VOA标准英语2010年(一月)

VOA标准英语2010年-UN: Somali Piracy Threat Outpacing Eff

According to the International Maritime Organization, 20 ships - and more than 438 sailors and passengers - are being held by pirates. U.N. political chief Lynn Pascoe warns that Somali pirates, driven by a lack of legitimate economic opportunities,

发表于:2019-01-14 / 阅读(39) / 评论(0)

VOA标准英语2010年(十一)月

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amplitude modulation (am)