jump in
US /dʒʌmp ɪn/
UK /dʒʌmp ɪn/

1.
entrar, pular
to join an activity or conversation quickly and eagerly
:
•
Everyone was discussing the new policy, so I decided to jump in with my opinion.
Todos estavam discutindo a nova política, então decidi entrar com minha opinião.
•
The kids were playing in the pool, and I couldn't resist the urge to jump in.
As crianças estavam brincando na piscina, e eu não consegui resistir à vontade de pular.
2.
pular para, intervir
to start doing something quickly or enthusiastically
:
•
When the bell rang, the students jumped in to pack their bags.
Quando a campainha tocou, os alunos pularam para arrumar suas mochilas.
•
He didn't hesitate to jump in and help when he saw the accident.
Ele não hesitou em intervir e ajudar quando viu o acidente.