도 잘하고

also do well, and

→ 도
phrase Uncommon #9,144
also do well, and 도 means “also” or “too,” and 잘하고 connects to what follows.
KO: 민수는 노래도 잘하고 춤도 잘 춰요.
EN: Minsu sings well and dances well too.