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We don't have any more pens, can we substitute pencils. 已经不再有钢笔了，可用铅笔来代替吗？ substitute表示以...代替。注意上句中substitute后的pencils不是被替换的，而是用来替换pens的。如果要明确表明用
蒋健棠英语实用句子
HEALTH REPORT -July 3, 2002: Sudden Cardiac Death By Nancy Steinbach This is the VOA Special English Health Report. An American professional baseball player, Darryl Kile, died recently. He was thirty
健康与环境
By Mike O'Sullivan Los Angeles 17 April 2006 The mariachi music of Mexico is flourishing in the United States, where Mexican-American youngsters are keeping alive the sounds of their homeland. A three
2006年VOA标准英语（四月）
By Jeff Swicord Washington, DC 19 September 2006 watch Iranian Artifact Suit It is a case that has victims of a terrorist bombing seeking restitution from a U.S. museum, and the U.S. State Department and the government of Iran on the same side. Jeff
2006年VOA标准英语（九月）
cyberchondriac的意思是上网自诊狂，靠网上搜集的医学知识来断症，甚至质疑医生的诊断。然而，网上资讯浩瀚如海，互相贯连、无限引伸，例如在查阅头痛和出红疹的根源时，互联网都可以连结
美国俚语