regress
v. 倒退,回归;(尤指因催眠或精神疾患)回到从前;(统计)回归
n. 退回;(哲)倒溯论证
例句
At the moment of victory, we regress.
在胜利的时刻,我们后退了。
Normally, they regress into four to five fused vertebrae (the coccyx).
通常情况下,它们回归为四到五块融合在一起的椎骨(尾骨)。
Some even regress and do not need to be treated - they are harmless.
有的甚至会自行退化因而不需要治疗——因为它们是无害的。