Breakdown of Niektórzy ludzie są uczuleni na krewetki.
być
to be
ludzie
people
na
on, at / to (motion toward) / for (a meal) / for (waiting for)
niektórzy
some / certain (virile)
uczulony
allergic
krewetka
shrimp
Elon.io is an online learning platform
We have an entire course teaching Polish grammar and vocabulary.