退步的英文：
degenerate
regress

Step forwards/backwards
向前迈步[向后退步

Academic standards have retrograded.
学术标准已退步。

She seemed better until her set back.
她似乎好起来了，后来又退步了。

There has been a deterioration in the vitality of the race and a regression in public security.
人类的生命力有所下降，公共安全在退步。

This can cause regression in a pupil's learning process.
这可能会使学生在学习过程中退步。

From an outside perspective, our progress might be seen as a regress.
跳脱出来看现在的一切，我们的进步可能被当作退步。

Under the influence either of poverty or of wealth workmen and their work are equally liable to degenerate. ——Plato
贫穷和财富都同样可以导致工作者和他们的工作退步。——柏拉图

He heaved a sigh and picked up a biscuit, nibbling at it before grinning at me.Dad's decline puzzled the doctor, too.
他叹了口气，拿起块饼干，咬了一小口，对我笑了笑。父亲的退步也令大夫感到困惑。

"degenerative:Of, relating to, causing, or characterized by degeneration"

Asteroid hyalosis is a degenerative condition of the eye.
星状玻璃体症是一种眼部退行性疾病。

A translucent product of some degenerative skin conditions.
透明角质皮肤衰退时分泌的一种半透明产物

The debate was degenerating into partisan squabbling.
辩论变成了党派间的争吵。

The argument degenerated into a row.
争论变成吵架。

The shoreline regressed in response to the situation.
滨线退到相应的位置上。

The attempt leads to an infinite regress.
这种作法会导致无穷倒退。

1.to go or drive against the traffic; to go in the wrong direction; to regress; to retrograde; to retrogress 2.backing; regress; regression; retrogression
逆行

There has been a deterioration in the vitality of the race and a regression in public security.
人类的生命力有所下降，公共安全在退步。

These regressions must be suited to the curvilinear character of the relationships
这些回归方程必须符合相关曲线特征。