도 가져오고

bring … too, and

→ 도
phrase Rare #17,175
bring … too, and 도 means “too” or “also” and attaches to the item being brought; 가져오고 connects this action to what follows.
KO: 간식도 가져오고 물도 준비했어요.
EN: I brought snacks too and prepared water.