音标：[rəʊ'teɪʃnz] ；

n. 旋转( rotation的复数形式 ); 转动; 轮流; 轮换

n. the act of rotating as if on an axis
n. (mathematics) a transformation in which the coordinate axes are rotated by a fixed angle about the origin
n. a single complete turn (axial or orbital)

VOA双语新闻 US Increasing Troop Levels in Iraq

More U.S. troops are on their way to Iraq ahead of elections set for the end of January. The additional forces are intended to bolster security at a time when the country's insurgency is threatening to prevent voting in areas of the country dominated

发表于:2019-01-19 / 阅读(58) / 评论(0)

VOA双语新闻 Bilingual News

美国科学60秒 SSS 2015-05-13

Crop rotation is a recognized way to keep soil and food eco-system healthy. Now scientists are saying that rotation could be a useful tool in the sea. Researchers tracked the shallow water near shore species used for food-sea cucumbers. They'are easy

发表于:2019-01-20 / 阅读(32) / 评论(0)

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奥巴马每日发言Speaks to the Troops(2009-4-7)

暂无音频 On February 27th, President Obama announced his plan to bring the War in Iraq to a responsible end. Today he addressed the troops in Iraq in a surprise visit before coming home from Europe. Find the full transcript below: THE PRESIDENT: Tha

发表于:2019-01-26 / 阅读(32) / 评论(0)

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高盛承诺将加快晋升以吸引人才

Goldman Sachs is promising junior investment bankers faster promotions, more diverse experiences and less menial work as part of Wall Streets latest attempt to lure new talent in the face of tough competition. 高盛(Goldman Sachs)对年轻的投行家

发表于:2019-02-07 / 阅读(145) / 评论(0)

英语新闻

China wins men's team title in gymnastics worlds

TOKYO, Oct. 12 (Xinhua) -- China won the men's team gold medal of the gymnastics world championships for the fifth time in a row Wednesday, holding off host Japan and the United States, which took the second and third place. China, the 2008 Beijing O

发表于:2019-02-07 / 阅读(51) / 评论(0)

英语新闻

2014年CRI 中国扩大马航失联航班的搜索范围敦促日本解释核材料

China says it will expand the search area for the missing jet in the coming days. The search will be expanded to the east and west, with intensive search in the east region and enhanced efforts in the southeast from Saturday, according to the China M

发表于:2019-02-14 / 阅读(60) / 评论(0)

2014CRI中国国际广播电台

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学英语单词

aulacaspis rosae bouche

authority of sanction