positive, acoustic, optimistic, fun, children, summer, kids, ukulele, advertising, happy, success, catchy, cheerful, folk, energetic, background
积极，原原声，乐观，有趣，孩子，夏天，孩子，夏威夷尤克里里，广告，快乐，成功，朗朗上口，开朗，民间，活力，背景