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Piracy - the act of robbery from ships at sea - has existed for thousands of years. It was written about by the ancient Greeks and has been written about ever since. As long as some people have moved valuable cargo in ships, other people have wanted
英文杂志-Magazine
by Jason Marshall Weve now talked about three methods for calculating average values: the mean, median, and mode (affectionately known as the three Ms). So, are we done? Is that everything we could ever want to know about interpreting average values?
数学英语
This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The 2011 Nobel Prize in chemistry goes to Daniel Schechtman of the TechnionIsrael Institute of Technology in Haifa. Schechtman discovered what are called quasicrystals.
Scientific American(十)月
NATO warships have launched an anti-piracy operation off the coast of Somalia by escorting one ship to port with plans for a similar operation on Tuesday. Lisa Bryant has more from Paris. The NATO operation aims to help calm the situation off Somali
VOA标准英语2008年（十月）
Maritime specialists say a surge in pirate attacks on ships between Somalia and Yemen is affecting global commerce and they are urging the international community to quickly find a solution to the crisis. As VOA Correspondent Alisha Ryu reports from
VOA标准英语2008年（九月）
JOHANNESBURG, March 8 (Xinhua) -- In order to combat piracy and to improve maritime safety, South African authorities（当局官方） have begun using a sophisticated（复杂的精细的 ） navigation satellite system, it was announced on Tuesday
英语新闻