/rʌt/
N. a groove or furrow(especially one in soft earth caused by wheels)
- Commissary wagons with torn canvas covers rocked through the ruts.
If you say that someone is in a rut, you disapprove of the fact that they have become fixed in their way of thinking and doing things, and find it difficult to change. You can also say that someone's life or career is in a rut. (思维、做事方式的) 刻板状态; (生活、事业) 一成不变状态，墨守成规
- I don’t like being in a rut, I like to keep moving on.
- The art of embracing a rut.