He has not been promoted for 20 years, he must be in a rut.

他二十年未获升级，一定感到单调枯燥。

youdao

If you're in a period of change or just feeling stuck and in a rut, now may be a good time.

如果你正处于一个变化期，或者只是感到困顿和陷入困境，现在可能是一个好时机。

youdao

Feeling a little down or stuck in a rut is one thing, but depression, on the other hand, is a serious issue and not one to be dismissed or taken lightly.

感觉有点失落或停滞不前是一回事，但是，抑郁就是一个严重的问题，我们不能对此不屑一顾或掉以轻心。

youdao

Greece may be in a rut but Germany is rocking.

FORBES: Sell Greece, Buy Germany

Ironically, at the time corporate raiders burst on the scene, the U.S. economy seemed to be stuck in a rut while Japan was ascendant.

FORBES: Dan Loeb Shakes Up Japan And Sony

The latter can be good if the firm is stuck in a rut and needs new life.

FORBES: From Bristol To HP: When Friendly Doesn't Cut It