From VOA Learning English, this is the Health Lifestyle report. Our brains are protected by our skull. But that is not the only protection it has. A natural barrier around our brains prevents germs and other damaging substances in the blood from ente

发表于:2018-12-08 / 阅读(66) / 评论(0) 分类 2018年VOA慢速英语(八)月

三角肌 deltoid 三角骨( 腕骨 ) triquetrum ( carpal ) 三胞胎( 多胎妊娠 ) triplets ( multiple pregnancy ) 三级支气管( 支气管 ) tertiary bronchus ( bronchus ) 下位的 inferior 下直肌( 眼直肌 ) inferior rectus ( rectus eye muscle ) 下肢 lower extremity 下

发表于:2018-12-12 / 阅读(60) / 评论(0) 分类 英文语法词汇

[00:05.80]April seventh was World Health Day. [00:09.27]The World Health Organization and the International Federation of Red Cross [00:14.52]and Red Crescent Societies made blood supply safety the message of the day. [00:20.82]Hospitals and doctors

发表于:2018-12-26 / 阅读(74) / 评论(0) 分类 美国英语听力80篇

87 蚊子传播疾病导致每年数百万人死亡 DATE=8-28-01 TITLE=SCIENCE IN THE NEWS #2139 - Diseases Spread by Mosquitoes BYLINE=Nancy Steinbach VOICE ONE: This is Sarah Long. VOICE TWO: And th

发表于:2019-01-02 / 阅读(53) / 评论(0) 分类 科技之光

Insulin - an endochrine hormone produced in the spleen which controls the amount of sugar in the blood by a) transporting it into cells and promoting glycolysis b) converting it into glycogen for stor

发表于:2019-01-03 / 阅读(47) / 评论(0) 分类 医务英语

By Victoria Cavaliere New York 16 October 2007 An annual stem cell research conference in New York has been bringing together some of the field's top scientists to discuss breakthroughs in stem cell research and what proponents call its long-term app

发表于:2019-01-31 / 阅读(40) / 评论(0) 分类 2007年VOA常速英语(十月)