Breakdown of Eles dão uma festa no verão.
eles
they (m)
um
a / an / some (all forms)
no
in the / on the / at the (m, f, pl forms: na, nos, nas)
a festa
the party
Questions & Answers about Eles dão uma festa no verão.
The translation says "throw", but doesn't dão mean "give"?
Yes, the verb dar primarily means "to give". However, just like English uses specific verbs for hosting events, Portuguese does too. In Portugal, you "give" a party rather than "throwing" or "having" one. So, dar uma festa is the normal way to say "to throw a party".
Where does the word no come from to mean "in the"?
No is a mandatory combination (called a contraction) of the preposition em (in/on/at) and the masculine word for "the", which is o. Because verão (summer) is a masculine word, em and o combine to make no.
Could I just say em verão if I want to say "in summer" instead of "in the summer"?