pitch in

US /pɪtʃ ɪn/
UK /pɪtʃ ɪn/
"pitch in" picture
1.

contribuir, ajudar, colaborar

to join in and help with an activity or task, especially by contributing money or effort

:
Everyone pitched in to clean up the park after the festival.
Todos contribuíram para limpar o parque depois do festival.
If we all pitch in, we can finish this project by tomorrow.
Se todos contribuirmos, podemos terminar este projeto até amanhã.