单词：cuds
Cambridge University Dramatic Society 剑桥大学戏剧社
单词：cuds 相关文章
In the front of its lower jaw there are eight sharp teeth for nipping. There are no teeth in its upper jaw opposite these, but there is a hard pad instead. At the back of its mouth the sheep has six teeth with flat tops on each side of each jaw. Thes
发表于:2019-02-07 / 阅读(150) / 评论(0)
英国学生科学读本
英国学生科学读本