单词：high-pressure cylinder
单词：high-pressure cylinder 相关文章
Everyday Grammar: Words Come and Go in English For VOA Learning English, this is Everyday Grammar. This weeks Everyday Grammar is by a guest author, David Sullivan. He is Assistant Managing Editor at The Philadelphia Inquirer, and Vice President of t
2015年VOA慢速英语(六)月
Back at the Armor Group compound, another team prepares for a different kind of mission. They'll travel low profile, trying to blend in with the Iraqis. Low profile certainly can be an awful lot safer. If faced down properly, people will not know, th
国家地理2007年
NB: This is not a word for word transcript Yvonne: Hello, I'm Yvonne Archer, this is 6 Minute English and thanks to Alice for joining me today. Alice: Hi Yvonne. Yvonne: Hello Alice. Now recently, an artefact - a very old piece of art - which many hi
六分钟英语
By Carol Pearson Washington 22 August 2007 High blood pressure, or hypertension, is a disease usually associated with adults, but children can get it too and can have serious health problems because of it. A new study is now calling for pediatricians
2007年VOA标准英语（八月）
By Melinda Smith Washington 12 September 2007 A recent study indicates that a disturbing number of American children with high blood pressure go undiagnosed. The study has prompted discussion worldwide about whether hypertension among children is jus
2007年VOA标准英语（九月）
Traffic at our twelve oclock, 10 miles, climbing. Should we expedite our descent to cross altitudes? 601. 冲突飞机在我们12点钟方位，10海里处，正在上升。我们应该加速下降以穿越高度吗？ Unable, TCAS RA. 602. 不能，
飞行员英语900句