单词：janda
[网络] 简达；扬达；寡妇
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By Jessica Berman Washington 31 July 2006 It could be the dream of anyone who has spent years trying to lose weight. Scientists have developed a vaccine that causes and maintains weight loss. So far, the drug has only been tested in rats. But resear
发表于:2018-12-08 / 阅读(181) / 评论(0)
2006年VOA标准英语（七月）
2006年VOA标准英语（七月）
Science and Technology Combating addiction 科技 打击吸毒 Can a vaccine stop drug abuse? 是否有种疫苗能对付毒品滥用？ It may be possible to vaccinate people against addictive drugs 向吸毒者接种疫苗防止毒瘾将成为可能
发表于:2019-01-26 / 阅读(266) / 评论(0)
经济学人科技系列
经济学人科技系列