Positive, acoustic, optimistic, fun, children, summer, kids, ukulele, advertising, happy, success, catchy, cheerful, folk, energetic, background
积极，原声，乐观，有趣，儿童，夏季，童趣，四弦琴，广告，快乐，成功，朗朗上口，欢快，民间，精力充沛，背景