单词:hydroxycamptothecin
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Speaking effective American English [00:01.52]流利美语训练妙方 [00:03.03]Now let's talk about duration,the fourth characteristic of effective speech.Words,like musical notes,last for a specific period of time. [00:08.01]现在我们来看看说
Millions More Children to Receive Vaccines More than one million children die each year from severe diarrhea and pneumococcal disease. Today (Tuesday), the GAVI Alliance announced an expanded campaign against the two leading killers of children world
Warren: So Lindsay, we're both teachers and sometimes our students go off to camp over the summer break. Did you ever go to camp when you were younger? Lindsay: I did go to camp. The camp I went to was called Pilgrim Pines. Warren: What was that like
Lindsay: So we're talking about camp today. Did you ever go to camp when you were a kid? Warren: I did. I usually went to Cub camp, you know like Boy Scouts. Lindsay: OK. Was it during the summer? Warren: Yes, it would always be in the summer. Lindsa
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Unclean water, crowded shelters and dirty conditions create a perfect environment at the Balukhali refugee camp for spread of preventable diseases. The camp is in Coxs Bazaar, a town in southeastern Bangladesh. It is home to some of the estimated 650
Humulone 律草酮 Huperzine Serrate P.E 千层塔提取物 Hydroginkgolic acid 氢化白果酸 Hydroginkgolinic acid 氢化白果亚酸 p-Hydroxyacetophenone 对羟基苯乙酮 p-Hydroxybenzylalcohol
Good clean competition harry all, otherwise, is a part of summer fun for children attending sleep-away camp. But in the middle of August, camps across the nation are closing their activities. Kids say goodbye to new friends and first loves and their
Goin'Campin' 去露营 Goin'campin'campin',campin'outunderthestars, Letmetellyou,goin'campin',campin', Campin'outunderthestars. We'retakin'ourgearandfoodalong, Campin'outunderthestars, We'regivin'acheerandsingin'asong, Campin'outunderthestars. Campin
AS IT IS - A tent camp in Berlin Hello, again, and welcome. Im Jim Tedder in Washington. Today, we were off to Berlin to visit a tent camp for people hoping to immigrate from Africa and the Middle East. And well hear about medical care in Ethiopia at
AS IT IS 2015-01-31 Woman Survives Nazi Death Camp by Mistake Dagmar Lieblova was 14 years old when she arrived at the Auschwitz death camp in December 1943. Everyone in her family was with her. They were Jews from Czechoslovakia. All of them but Dag
Researchers Say Malaria Drug Could Also Treat Cancer Scientists know that human cancer cells grow by getting energy from adjacent tumors, where cells have begun to self-destruct. The spread of cancer is accelerated by the death of these cells. This p
New Somali Refugee Camp Set to Open in Kenya 肯尼亚将为索马里难民开放新的营地 With more than 400,000 Somalis now in Dadaab, Kenya, the opening of a new refugee camp there is welcome news. Somalis begin moving to the Kambioos site Satu
US Scientists Expand Scope of HIV Vaccine Study The worlds largest ongoing HIV vaccine study has been expanded to consider multiple ways a vaccine might boost immune response to the AIDS virus. The U.S. Institute of Allergy and Infectious Diseases (N
Bertie, the guiding spirit of Storynory, is a frog who likes to tell stories about the time when he was a human prince. His adventures range far and wide, and this one is no exception. We learn how when Bertie was a teenage prince, the King was afrai
Broadcast on Coast to Coast: November 7, 2002 Rebroadcast on VOA News Now: November 10, 2002 AA: I'm Avi Arditti with Rosanne Skirble, and this week on WORDMASTER -- slang and idioms in American politics. RS: Tuesday was Election Day, and Slangman Da
In January 2015, a fire in one of Russia's largest university libraries damaged more than 1 million historical documents, an incident which some media described as a cultural Chernobyl. 2015年1月,俄罗斯最大的大学图书馆之一发生了火灾
By Jessica Berman Washington 11 May 2006 French researchers at the Sanofi Pasteur Institute say they have developed a bird flu vaccine that, so far, appears to be safe and effective in humans. But obs
今天我们要学的词是summer camp。 Summer camp, 夏令营。Going to summer camp is a long tradition in the U.S. 送孩子去夏令营是美国一个历史悠久的传统。Some 8 million children attend summer camps each year, 每年有大约八
今天我们要学的词是summer camp。 Summer camp, 夏令营。Going to summer camp is a long tradition in the U.S. 送孩子去夏令营是美国一个历史悠久的传统。Some 8 million children attend summer camps each year, 每年有大约八