ㄈㄣfēnㄕㄣshēnㄈㄚˊㄕㄨˋshù

  1. 比喻非常繁忙無法兼顧他事這麼事情分身乏術無法兼顧。」分身不暇

to be up to one's ears in work (idiom)​, to be unable to attend to other things at the same time