TAG: birds, 家居, 歌声, domestic, daily, knocking, door, 生活, 生活家居, 鸟类, household, bird, 敲门, home, 四, knock → 家居_歌声_日常敲门声
TAG: 发动机, 引擎, 人声, car, motor, communication, 四, 汽车, city, speech, talking, 说话, voice, human, 人类, 语音, 交流, engine →
