断港绝潢

斷港絕潢
duàngǎngjuéhuáng
  1. to be unable to continue
  2. to come to a dead end (idiom)

CEDICT

不能通行的水路。比喻无法达到目的地的错误途径。唐．韩愈〈送王秀才序〉：「故学者必慎其所道，道于杨墨老庄佛之学，而欲之圣人之道，犹航断港绝潢以望至于海也。」也作「断流绝港」、「断潢绝港」。

重編國語辭典

Entry Composition

1 断 duàn
  1. to break
  2. to snap
  3. to cut off
  4. to give up or abstain from sth
  5. to judge
  6. (usu. used in the negative) absolutely
  7. definitely
  8. decidedly
2 港 gǎng
  1. harbor
  2. port

classifier: 個
=3 绝 jué
  1. to cut short
  2. extinct
  3. to disappear
  4. to vanish
  5. absolutely
  6. by no means
=3 绝 jué variant of 绝 jué
4 潢 huáng
  1. dye paper
  2. lake
  3. pond
  4. mount scroll