positive, acoustic, optimistic, fun, children, summer, kids, ukulele, advertising, happy, success, catchy, cheerful, folk, energetic, background
积极，不插电，乐观，乐趣，儿童，夏天，孩童，尤克里里，广告，快乐，成功，抓耳，欢快，民谣，活力，背景