"Those girls like apples."
Translation:Ta děvčata mají ráda jablka.
The construction mít rád/mít ráda (etc.) means "to like." You will come across the mít rád construction often.
Mají is the third person plural form of mít in the present tense. The form of mít changes depending on the gender and number of the subject. Rád is a short-form adjective, and its ending also changes according to the gender and number of the subject..
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