连轴转

Traditional (Taiwan): 連軸轉

liánzhóuzhuàn ㄌㄧㄢˊ ㄓㄡˊ ㄓㄨㄢˋ

    • to work non-stop to work around the clock

      coll.

Character by character

Saying俗语俗語

Idiom惯用语 · In everyday use

Literally
turn on without stopping, like a spinning axle
Meaning
To work continuously for a long time without a break. Often said with a note of exhaustion.

Sources