knock back
US /nɑk bæk/
UK /nɑk bæk/

1.
2.
custar caro, sair caro
to cost a lot of money
:
•
That new car will knock you back a fortune.
Aquele carro novo vai te custar uma fortuna.
•
The repairs are going to knock us back a few hundred dollars.
Os reparos vão nos custar algumas centenas de dólares.
3.
jogar para trás, arremessar para trás
to cause someone to fall or move backward with a forceful blow
:
•
The punch knocked him back against the wall.
O soco o jogou para trás contra a parede.
•
The explosion knocked people back several feet.
A explosão arremessou as pessoas vários metros para trás.