read somebody like a book
US /riːd ˈsʌm.bə.di laɪk ə bʊk/
UK /riːd ˈsʌm.bə.di laɪk ə bʊk/

1.
누구를 책처럼 꿰뚫어 보다, 누구의 속마음을 훤히 알다
to understand someone's thoughts, feelings, and motives very well, as if you are reading a book
:
•
She knows me so well; she can read me like a book.
그녀는 나를 너무 잘 알아서, 나를 책처럼 꿰뚫어 볼 수 있어.
•
After years of working together, I can read him like a book.
수년간 함께 일했더니, 그를 책처럼 꿰뚫어 볼 수 있어.