latch on

US /lætʃ ɑːn/
UK /lætʃ ɑːn/
"latch on" picture
1.

entender, compreender

to understand something completely

:
It took him a while to latch on to the new concept.
Demorou um pouco para ele entender o novo conceito.
The students quickly latched on to the teacher's instructions.
Os alunos rapidamente entenderam as instruções do professor.
2.

agarrar-se a, prender-se a

to become attached to or fix oneself firmly to something

:
The baby latched on to her mother's finger.
O bebê agarrou-se ao dedo da mãe.
The dog latched on to the bone and wouldn't let go.
O cachorro agarrou-se ao osso e não soltava.