VOA慢速英语：以色列公司声称发明第一块“实验室培育”的牛排
来自：VOA英语网 文章地址: http://livechatworks.com/18/12/Israeli-Company-Claims-Invention-of-First-Lab-Grown-Steak.html
来自：VOA英语网 文章地址: http://livechatworks.com/18/12/Israeli-Company-Claims-Invention-of-First-Lab-Grown-Steak.html