音标:[,pæpi'ləumə'vaiərəs] ;
Papillomavirus
[,pæpi'ləumə'vaiərəs]
【病毒学】乳头状瘤病毒

By David McAlary Washington 28 February 2007 watch Barry Unger HPV report A sexually-transmitted virus that is a leading cause of female cancer deaths in developing countries is also very prevalent in the United States. It is the human papillomaviru

发表于:2018-12-16 / 阅读(95) / 评论(0) 分类 2007年VOA标准英语(二月)

This is the VOA Special English Health Report. Male circumcision is the cutting off of a small amount of skin from the tip of the penis. In many parts of the world it is done when a baby is a few days old. However, in other parts of the world it is

发表于:2019-01-09 / 阅读(76) / 评论(0) 分类 VOA慢速英语2009年(四)月