紐ひも解とく

godan verb (-ku), transitive verb

open a book to read; read a book

Literally 'untie the cord', referring to the traditional practice of untying a bound book. Used in literary or formal contexts for opening and reading a book, often with a sense of beginning to read carefully.

• 彼かれは毎まい晩ばん、枕まくら元もとで一いっ冊さつの本ほんを紐ひも解とく。

  Every night, he opens a book by his bedside and reads.

• 古こ典てん文ぶん学がくを紐ひも解とくと、当とう時じの人ひと々びとの暮くらしが見みえてくる。

  When you open a classic work of literature, you can glimpse the lives of people back then.

godan verb (-ku), transitive verb

unravel a mystery; discover the truth

Figurative extension: to untangle or solve something complex, like a mystery or a difficult problem. Often used with words like 謎 (mystery) or 秘密 (secret).

• 探たん偵ていは事じ件けんの謎なぞを紐ひも解といた。

  The detective unraveled the mystery of the case.

• 歴れき史しの真しん実じつを紐ひも解とくのは容よう易いではない。

  Uncovering the truth of history is not easy.