The eensey weensey spider went up the water spout. (Walk your fingers up.) Down came the rain and washed the spider out. (Flutter your fingers down, simulating rain, and then sweep your hands out.) Out came the sun and dried up all the rain. (Make a

发表于:2019-01-10 / 阅读(94) / 评论(0) 分类 Super Simple Songs 唱唱跳跳学美语

Simulating Blindness Might Help Improve Hearing 模拟失明或有助于提高听力 A new report suggests it might be possible to change the circuitry of the brain to better process sound, a finding that could give renewed hope to the 350 million pe

发表于:2019-01-14 / 阅读(37) / 评论(0) 分类 VOA标准英语2014年(二月)