许多人在职业生涯中感到陷入困境，停滞不前。

Many people feel stuck ___in ___a ___rut in their careers.

没有新的挑战，很容易陷入墨守成规的状态。

Without new challenges, it's easy to fall ___in ___a ___rut.

他的创造性工作几个月来一直停滞不前。

His creative work has been ___in ___a ___rut for months.