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发音要领: [ə]是中央、不圆唇、非重读元音舌位:舌头中间部分抬起，舌、唇和牙床都很自然，肌肉相对放松:声带:振动。 技巧提示： [ə]与[ə:]的区别:发[ə]时牙床半开，但发[ə:]时的牙床比[ə
英语国际音标
双元音[ei] 发音要领: [ei]是合口双元音。舌位:先将舌尖抵住前下齿，舌前部抬向硬腭，高度为中高，发元音[e] ，然后两唇拉向两边，宽度减小，同时舌身高度抬至[i]的高度，在这一滑动过程中
英语国际音标
The Federal Reserve says that consumers sharply cut back on their borrowing in July. That decline suggests the economic rebound will not come as quickly as many economists have predicted. Food manufacturers now have to tell the Food and Drug Adminis
2009年NPR美国国家公共电台9月
VOICE ONE: Welcome to THIS IS AMERICA in VOA Special English. I'm Bob Doughty. VOICE TWO: Annie Leibovitz with portrait of Susan Sontag in ''A Photgrapher's Life, 1990-2005'' at the Corcoran Gallery of Art And I'm Faith Lapidus. This week we tell ab
VOA慢速英语2008年（一）月
Technology Report - Google Faces Heat Over New Privacy Policy This is the VOA Special English Technology Report. Google is preparing for changes in its privacy policy beginning March first. The company says it plans to replace more than sixty separat
2012年VOA慢速英语(二)月
Annie Leibovitz Takes New Path in 'Pilgrimage' There are homes and personal items that belonged to people who are no longer with us, including artists, scientists, photographers, and a U.S. president. Leibovitz says she went on a journey from 2009 to
VOA标准英语2012年(二月)