做一行怨一行

zuòyīhángyuànyīháng

no matter the work, there will be something to take issue with; the grass is always greener on the other side jobwise

Wiktionary

Entry Composition

1 做 zuò
  1. to make; to produce
  2. to write; to compose
  3. to do; to engage in; to hold (a party etc)
  4. (of a person) to be (an intermediary, a good student etc); to become (husband and wife, friends etc)
  5. (of a thing) to serve as; to be used for
  6. to assume (an air or manner)
=2 一行 yīxíng
  1. party
  2. delegation
=2 一行 yīháng
  1. a (kind of) profession; same profession
  2. one row; one line
3 怨 yuàn
  1. to blame
  2. (bound form) resentment; hatred; grudge
=4 一行 yīxíng
  1. party
  2. delegation
=4 一行 yīháng
  1. a (kind of) profession; same profession
  2. one row; one line