| 单词 | retrogression |
| 释义 | retrogression /re'treuh gresh"euhn/, n. 1. the act of retrogressing; movement backward. 2. Biol. degeneration; retrograde metamorphosis; passing from a more complex to a simpler structure. [1640-50; < L retrogress(us) (see RETROGRESS) + -ION] |
| 随便看 |
英语词典包含168451条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。