单词：alkadienes
单词：alkadienes 相关文章
Refugees carry few material goods with them when they flee war, violence or persecution in the homelands. But they do bring skills to their new countries. An exhibit in the United States shows that sometimes these skills are artistic. The Sandy Sprin
2018年VOA慢速英语(八)月
By Barry Wood Washington, DC 08 January 2007 watch Balkan Pipeline report Map of Balkan pipelines A race is underway in the Balkans to build an oil export pipeline that bypasses the Turkish Straits. One proposed line would go from Bulgaria to Albani
2007年VOA标准英语（一月）
Amazon Gets Patent for Drone Deliveries 亚马逊获得无人机专利 Amazon.com - the largest U.S.-based online retailer - has received a patent for its planned delivery system - getting merchandise to customers by flying drones. In March, federal
VOA标准英语2015年(五月)
Amazon Receives Patent for Drone Delivery System 亚马逊获得无人机送货专利 Amazon.com has received patent rights to send its products to customers by unmanned drone aircraft. The company is the largest U.S.-based online seller of products.
2015年VOA慢速英语(五)月
亚马逊无人机送货计划提交专利申请 According to the patent application published by the U.S. Patent Office, Amazon plans to use the Global Positioning System, or GPS, not only for deliveries to homes around the country, but directly to
VOA标准英语2015年(十月)
Todd: Aaron, sometimes I hear from Australians, the term, have a walk-about, or walk-about! Aaron: A walk-about is an aboriginal word. It basically, means an aboriginal boy, when he is growing up goes for a long walk, maybe for twelve months, and he
原版英语对话1000个
A Russian spacecraft carrying three astronauts has docked at the International Space Station. NASA says the crew docked some 400 kilometers above Earth over the Pacific Ocean, off the western coast of Peru, 6 hours after the rocket took off from a Ru
cctv9英语新闻2016年