Broadcast: Jan 6, 2003 By Jill Moss This is the VOA Special English Development Report. Vaccines are special medicines to prevent diseases. They are usually given to children by injection. They have p

发表于:2018-12-07 / 阅读(46) / 评论(0) 分类 VOA2003(上)-健康资讯

SCIENCE IN THE NEWS - Polio Vaccine Ban in Parts of Nigeria / Safety Laws Urged for India / Two More Elements? By Broadcast: Tuesday, March 02, 2004 (THEME) VOICE ONE: This is SCIENCE IN THE NEWS, in

发表于:2019-01-02 / 阅读(50) / 评论(0) 分类 科技之光

Efforts to eradicate polio have been frustrated by a variety of factors, and unlike smallpox, the disease has defied long-running and expensive efforts to wipe it out. Now, a new study indicates that one of several polio vaccines can be effective at

发表于:2019-01-13 / 阅读(33) / 评论(0) 分类 VOA标准英语2010年(七)月

HEALTH REPORT - Progress Toward a Malaria Vaccine By Karen Leggett Broadcast: Wednesday, October 27, 2004 This is Gwen Outen with the VOA Special English Health Report. There is progress toward a vacc

发表于:2019-01-30 / 阅读(31) / 评论(0) 分类 健康与经济

DEVELOPMENT REPORT - Malaria Vaccine By Karen Leggett Broadcast: Monday, April 05, 2004 This is Robert Cohen with the VOA Special English Development Report. Graphic Image Malaria is a very serious di

发表于:2019-01-30 / 阅读(42) / 评论(0) 分类 农业与发展

今天我们要学的词是vaccine。 Vaccine, 疫苗。The Food and Drug Administration approved vaccines designed to protect against the H1N1 flu virus, 美国食品和药物管理局批准了甲型H1N1流感疫苗。 The first doses of the vaccine

发表于:2019-02-05 / 阅读(64) / 评论(0) 分类 英语每日一词