It was a vegetarian and probably snacked on pine needles and ferns.它属于食草动物,可能主要吃松针和蕨类植物.The xylem of ferns and conifers contains only tracheids.蕨类植物和针叶树的木质部仅含有管胞.Blackboys sprouted out of the thick undergrowth of ferns a...
Men who use steroids are motivated by sheer vanity.使用类固醇的男人纯粹是受虚荣心的驱使。He was stripped of his Olympic title after testing positive for anabolic steroids.在促蛋白合成类固醇检测呈阳性后，他被取消了奥林匹克冠军头衔。He was stripped of his Olympic Hundred...