pleased, acoustic, fun, playful, children, kids, ukulele, smile, happy, upbeat, carefree, bright, cheerful, banjo, sweet, lightly, glockenspiel, joyful
高兴，声学，乐趣，嬉戏，儿童，孩子们，尤克里里，微笑，快乐，乐观，无忧无虑，明亮，快乐，班卓琴，甜，轻轻地，钟琴，快乐