这是一个在一段时间内缓慢发生的过程，也许会持续好几年。

This is a gradual process that takes place over time, perhaps years.

youdao

这是一个在一段时间内缓慢发生的过程，也许会持续好几年。

This is a gradual process that takes place over time, perhaps years.

youdao