改编自William Kamkwamba所著自传《驭风男孩》（The Boy Who...
Betty Boop and Little Jimmy are prevented by a thunderstorm from going to the carnival. Inventive Grampy devises a substitute.
...
This short film celebrates the hard work, tenacity, and ingenuity of inventors. Highlighted are some seemingly small inventions that have become part...
免费无限访问, 搜索没有广告, 每天都有数以百万计的标题和添加, 所有平台和全面优化, 随时随地
