单词：emergency escape breathing device
单词：emergency escape breathing device 相关文章
A Silent Killer: Carbon Monoxide Poisoning 沉默的杀手:一氧化碳中毒 From VOA Learning English, this is Science in the News. Im Bob Doughty. And Im June Simms. Winter has brought cold weather to many parts of Earths northern hemisphere. With
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VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Bob Doughty. VOICE TWO: And I'm Faith Lapidus. Wintry conditions are returning to the northern part of the world. Winter brings cold weather and, with it, a danger as old as man's k
VOA慢速英语2008年（十二）月
FAITH LAPIDUS: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Faith Lapidus. CHRISTOPHER CRUISE: And I'm Christopher Cruise. Winter has brought cold weather to many areas in Earths northern hemisphere. With the cold comes a danger as old as
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本单元是关于紧急情况的对话 Alice: Oh it's so quiet tonight! You could hear a pin drop. Gives me a chance to catch up on my reading. Man: Quick, quick! Get a doctor! Alice: She's just gone for a break. What's the matter? Man: I don't know. It's m
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This is SCIENCE IN THE NEWS, in VOA Special English. I'm Christopher Cruise. And I'm Bob Doughty. Winter has brought cold weather to many parts of Earths northern hemisphere. With the cold comes a danger as old as mans knowledge of fire -- death or i
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A: I need a doctor's appointment right away! B: Is this an emergency? A:I am having trouble breathing. B:Have you had a cold lately? A: It has been going on for a few days now. B:You should hang up and dial 911. A: I don't think that this is that bad
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