noun 下载 🔗分享 痕迹器官，退化器官。 A small, degenerate, or imperfectly developed part or organ which has been more fully developed in some past generation. Examples : "The human appendix is often cited as a vestigial organ, a remnant of our herbivorous ancestors. " 人类的阑尾常常被认为是痕迹器官，是我们草食祖先遗留下来的残余。 anatomy biology physiology organ part science 与AI对话词汇游戏阅读练习
adjective 下载 🔗分享 残余的，残留的。 Of or pertaining to a vestige or remnant; like a trace from the past. Examples : "The human appendix is considered a vestigial organ, a remnant from our evolutionary past when it was used to digest cellulose. " 人的阑尾被认为是残余器官，是我们进化历史中遗留下来的痕迹，那时它曾被用来消化纤维素。 biology anatomy history past 与AI对话词汇游戏阅读练习
adjective 下载 🔗分享 退化的，残留的 Not fully developed in mature animals. Examples : "The human tailbone is a vestigial structure, a remnant from our ancestors that once had tails. " 人的尾骨是一种退化的结构，是我们祖先曾经拥有尾巴的残留痕迹。 biology anatomy physiology organism 与AI对话词汇游戏阅读练习
