你知道双氧水有什么用途吗？
双氧水的用途是给牛蹄、牛耳朵漂白。[{'character': '双', 'pinyin': 'shuang1', 'highest pitch': 11.49, 'lowest pitch': 10.78, 'duration': 0.26, 'prosody hierarchy': 'null'}, {'character': '氧', 'pinyin': 'iang2', 'highest pitch': 11.23, 'lowest pitch': 9.44, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '水', 'pinyin': 'shuei3', 'highest pitch': 10.86, 'lowest pitch': 6.37, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 7.28, 'lowest pitch': 6.37, 'duration': 0.1, 'prosody hierarchy': '#1'}, {'character': '用', 'pinyin': 'iong4', 'highest pitch': 8.37, 'lowest pitch': 7.28, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '途', 'pinyin': 'tu2', 'highest pitch': 7.28, 'lowest pitch': 6.04, 'duration': 0.29, 'prosody hierarchy': '#2'}, {'character': '是', 'pinyin': 'shiii4', 'highest pitch': 8.42, 'lowest pitch': 6.65, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '给', 'pinyin': 'gei3', 'highest pitch': 6.87, 'lowest pitch': 1.11, 'duration': 0.27, 'prosody hierarchy': '#2'}, {'character': '牛', 'pinyin': 'niou2', 'highest pitch': 11.24, 'lowest pitch': 1.11, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '蹄', 'pinyin': 'ti2', 'highest pitch': 7.91, 'lowest pitch': 6.32, 'duration': 0.35, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.13}, {'character': '牛', 'pinyin': 'niou2', 'highest pitch': 11.24, 'lowest pitch': 7.92, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '耳', 'pinyin': 'er3', 'highest pitch': 11.15, 'lowest pitch': 4.78, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '朵', 'pinyin': 'duo5', 'highest pitch': 9.69, 'lowest pitch': 7.58, 'duration': 0.15, 'prosody hierarchy': '#1'}, {'character': '漂', 'pinyin': 'piao3', 'highest pitch': 8.69, 'lowest pitch': 4.12, 'duration': 0.28, 'prosody hierarchy': 'null'}, {'character': '白', 'pinyin': 'bai2', 'highest pitch': 8.79, 'lowest pitch': 4.94, 'duration': 0.35, 'prosody hierarchy': '#4'}]