持续不断

She pursued the study of English for five years.

不断地学了五年英语。

We have had incessant snowfall since yesterday afternoon.

从昨天下午开始就不断地下雪。

The rebel held and cleg as rebel-held enclave is coming sustain under sustained pressure from the army.

反叛者控制这块飞地受到来自军队不断压力。

Things rapidly became calm, though beneath the surface the argument rumbled on.

事情迅速平下来了, 然而, 在这种平表面背后争论如隆隆雷声, 不断。

Imperfective aspect: indicating a present, ongoing, continuous, or recurrent action.The present and the imperfect tense convey this aspect.

我去查了希腊文动词时态，确实有里面讲现在式，(Imperfective aspect) 讲个现在开始不断动作。