(STD 的复数) [计] 标准
plural of STD
n a communicable infection transmitted by sexual intercourse or genital contact
n a doctor's degree in theology

February the 14th is National Condom Day. It aims to raise awareness of safe sex and the reasons for it. Today we live in a world where unwanted pregnancies and sexually transmitted diseases (STDs), including HIV/AIDS, are on the increase. This incre

发表于:2018-12-04 / 阅读(51) / 评论(0) 分类 英语课程学习计划和讲义

February the 14th is National Condom Day. It aims to raise awareness of safe sex and the reasons for it. Today we live in a world where unwanted pregnancies and sexually transmitted diseases (STDs), including HIV/AIDS, are on the increase. This incre

发表于:2018-12-29 / 阅读(28) / 评论(0) 分类 世界节假日博览

SCOTT SIMON, HOST: Over the last five years, the United States has seen a steep increase in sexually transmitted diseases - 2.3 million Americans now have some form of STD. One county in Oregon is asking people diagnosed with the more serious forms t

发表于:2019-01-17 / 阅读(29) / 评论(0) 分类 2018年NPR美国国家公共电台9月