retrogress
倒退，退化（retro+gress走→向后走）
释义2：
retrogress
/ 5retrE7gres , 7retrE5gres /
◙ verb1. [no obj.] go back to an earlier state, typically a worse one• 倒退，退化，衰退，恶化 »she retrogressed to the starting point of her rehabilitation. 她的病情退化到恢复初期时状况。【语源】
1. early 19th cent.: from retro- 'back', on the pattern of the verb progress
俄语/英语字母转换