文不加點

文不加点
wénbùjiādiǎn
  1. to write a flawless essay in one go (idiom)
  2. to be quick-witted and skilled at writing compositions

CEDICT

to write a flawless essay in one go; to be quick-witted and skilled at writing compositions

Wiktionary

形容文思敏捷、下筆成章，通篇無所塗改。《北史．卷二六．杜銓傳》：「又試官人有奇器，並立成，文不加點。素大嗟之，命吏部優敘。」《三國演義．第七一回》：「度尚令邯鄲淳作文鐫碑以記其事。時邯鄲淳年方十三歲，文不加點，一揮而就。」也作「文無加點」。

重編國語辭典

Entry Composition

1 文 wén
  1. language
  2. culture
  3. writing
  4. formal
  5. literary
  6. gentle
  7. (old) classifier for coins
  8. Kangxi radical 67
2 不加 bùjiā
  1. without
  2. not
  3. un-
3 點 diǎn
  1. to touch briefly; to tap
  2. to mark with a dot; to check off (on a list)
  3. to order (food etc); to select
  4. to mention; to bring up (a topic or person)
  5. to hint at; to imply
  6. to administer (eye medicine etc) in drops
  7. to light (a fire, a lamp etc); to ignite
  8. to nod (one's head) in agreement; to beckon by moving (one's hand) up and down
  9. point; dot; spot; speck
  10. dot stroke in Chinese characters
  11. (math.) decimal point
  12. point in time or space
  13. (after a number) o'clock
  14. a small amount; a bit; (after a verb or adjective) a bit more
  15. classifier for small amounts