vi.

1. 堅持；固執[（+in/with）]
   Why do you persist in writing these things?

   你為什麼要堅持寫這些東西呢？

2. 持續；存留
   The storm persisted for a week.

   暴風雨持續了一個星期。

vt.

1. 堅持說，反覆說[Y][+that]
   He persisted that he had nothing to do with robbery.

   他堅持說他與搶劫毫無關係。

v.

1. continue firmly or obstinately in an opinion or a course of action in spite of difficulty or opposition.
2. continue to exist.