一目十行

yīmùshíháng
  1. ten lines at a glance (idiom)
  2. to read very rapidly

CEDICT

to be able to read ten lines at a glance; to read very quickly

Wiktionary

語本《北齊書．卷一一．文襄六王傳．河南王孝瑜傳》：「謹慎寬厚，兼愛文學，讀書敏速，十行俱下，覆棋不失一道。」比喻閱讀迅速。《紅樓夢．第二三回》：「你說你會過目成誦，難道我就不能一目十行了？」也作「目下十行」。

重編國語辭典

閱讀迅速

維基詞典

Entry Composition

1 一目 yīmù
  1. (literary) one eye
  2. a glance; a look
  3. one eye
  4. one item
2 十 shí
  1. ten
  2. 10
3 行 háng
  1. (bound form) row; line
  2. (bound form) line of business; trade; profession
  3. (bound form) commercial firm
  4. (bound form) to rank (first, second etc) among one's siblings (by age)
  5. (in data tables) row; (Tw) column
  6. classifier for rows or lines