check into

US /tʃek ˈɪntuː/
UK /tʃek ˈɪntuː/
"check into" picture
1.

fazer o check-in, registrar-se

to register at a hotel or airport

:
We need to check into the hotel before 3 PM.
Precisamos fazer o check-in no hotel antes das 15h.
Passengers are advised to check into their flights at least two hours before departure.
Os passageiros são aconselhados a fazer o check-in em seus voos pelo menos duas horas antes da partida.
2.

investigar, verificar

to investigate or examine something

:
The police are checking into the suspicious activity.
A polícia está investigando a atividade suspeita.
I need to check into why the system crashed.
Preciso investigar por que o sistema travou.