中途而廢

中途而废
zhōngtú'érfèi

to give up halfway through a task; to not finish what one has started; to change horses in midstream

Wiktionary

Entry Composition

1 中途 zhōngtú midway
2 而 ér
  1. and
  2. as well as
  3. and so
  4. but (not)
  5. yet (not)
  6. (indicates causal relation)
  7. (indicates change of state)
  8. (indicates contrast)
3 廢 fèi
  1. to abolish
  2. to abandon
  3. to abrogate
  4. to discard
  5. to depose
  6. to oust
  7. crippled
  8. abandoned
  9. waste