read between the lines
US /riːd bɪˈtwiːn ðə laɪnz/
UK /riːd bɪˈtwiːn ðə laɪnz/

1.
ler nas entrelinhas, entender o significado oculto
to understand the hidden meaning in what someone says or writes
:
•
You have to read between the lines to understand what she really means.
Você tem que ler nas entrelinhas para entender o que ela realmente quer dizer.
•
His letter seemed straightforward, but I could read between the lines that he was unhappy.
A carta dele parecia direta, mas eu pude ler nas entrelinhas que ele estava infeliz.