swear by

US /swer baɪ/
UK /swer baɪ/
"swear by" picture
1.

jurar por, acreditar firmemente em

to believe strongly in the effectiveness or truth of something

:
My grandmother swears by this herbal remedy for colds.
Minha avó jura por este remédio herbal para resfriados.
Many chefs swear by fresh, local ingredients.
Muitos chefs juram por ingredientes frescos e locais.