单词：conic curved surface
单词：conic curved surface 相关文章
This is the VOA Special English Health Report. Governments, businesses and other groups have promised to add three billion dollars to the fight against malaria. The promises came last week at a meeting at the United Nations in New York. The money wi
VOA慢速英语2008（十）月
May I have a menu, please? （我可以看菜单吗？）《白领英语900句》在点菜之前，一般先要份菜单。点菜有两种方式，一是a la carte（随意点菜），一是tabled' hotel或fixed price meal（份饭，套餐），后一
实用英语
One of South Korea's most powerful business leaders has avoided a prison sentence for alleged corruption. A South Korean court agrees the former chairman of Samsung evaded taxes, but it threw out more serious charges. VOA's Kurt Achin reports from S
VOA标准英语2008年（七月）
Looking up at the night sky, we are amazed by how it seems to go on forever. 仰望夜空，我们为它的永无止境而感到惊讶。 But what will the sky look like billions of years from now? 然而数十亿年前的天空又会是什么样子呢
TED演讲教育篇
Why Frisbees Fly With a gentle flick of the wrist on a warm summer day, you can launch a frisbee on a long and graceful flight. Why do they fly so well? One reason is something called gyroscopic force. This is the tendency of a spinning object to mai
英语听力文摘 English Digest