it will (all) come out in the wash
US /ɪt wɪl ɔl kʌm aʊt ɪn ðə wɑʃ/
UK /ɪt wɪl ɔl kʌm aʊt ɪn ðə wɑʃ/

1.
tudo se resolverá no final, tudo virá à tona
said to mean that a problem or difficulty will eventually be resolved or become clear, so there is no need to worry now
:
•
Don't worry about the misunderstanding; it will all come out in the wash.
Não se preocupe com o mal-entendido; tudo se resolverá no final.
•
I'm not sure how we'll solve this problem, but I'm sure it will all come out in the wash.
Não tenho certeza de como resolveremos este problema, mas tenho certeza de que tudo se resolverá no final.