dwell on
US /dwel ɑːn/
UK /dwel ɑːn/

1.
deter-se em, insistir em
to think, speak, or write at length about (a particular subject, especially one that is a source of unhappiness, anxiety, or dissatisfaction)
:
•
Don't dwell on your past mistakes; focus on the future.
Não se prenda aos erros do passado; concentre-se no futuro.
•
She tends to dwell on negative thoughts.
Ela tende a se deter em pensamentos negativos.