单词：zd
n. 天顶距（zenith distance）；零色散（Zero Dispersion）
单词：zd 相关文章
Jon Batzdorff Makes People's Dreams Come True Jon Batzdorff has made it his life's work to help amputees, not only in the United States, but around the world. His business is prosthetics and orthotics - the evaluation, fabrication and custom-fitting
发表于:2019-01-14 / 阅读(144) / 评论(0)
VOA标准英语2011年(六月)
VOA标准英语2011年(六月)