Brava ragazza less frequently and buona ragazzamore frequently are Italian equivalents of the English phrase "good girl." Context makes clear whether moral or nice-looking (case 1) or nice-behaving or nicely skilled or proficient (example 2) suits. The respective pronunciations will be "BWO-na ra-GAT-tsa" and "BRA-va ra-GAT-tsa" in Italian.
"Good girl" in English means brava ragazza in Italian.
"Happy birthday, good-looking girl!" in English is Buon compleanno, bella! in Italian.
"Good" in English is buono in Italian.
"It is good!" in English is È buono! in Italian.
"Good! And you?" in English is Buono! E tu? in Italian.
"Good! How are you?" in English is Bene! Come stai? in Italian.
"Good night!" in English is Buonanotte! in Italian.
"Good vacation" in English is buona vacanza in Italian.
"Good health" in English is buona salute in Italian.
"Good artist!" in English is Buona artista! in Italian.
"Good head!" in English is Buona testa! in Italian.
"Good fortune" in English is buona fortuna in Italian.
"Good lover" in English is buon amante in Italian.