我们需要提升我们的服务质量。
今后，专业化将是“空中幺幺零”的发展目标。[{'character': '今', 'pinyin': 'jin1', 'highest pitch': 9.04, 'lowest pitch': 8.7, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '后', 'pinyin': 'hou4', 'highest pitch': 14.16, 'lowest pitch': 7.15, 'duration': 0.26, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.18}, {'character': '专', 'pinyin': 'zhuan1', 'highest pitch': 11.38, 'lowest pitch': 10.55, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '业', 'pinyin': 'ie4', 'highest pitch': 11.34, 'lowest pitch': 8.33, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '化', 'pinyin': 'hua4', 'highest pitch': 8.43, 'lowest pitch': 6.6, 'duration': 0.27, 'prosody hierarchy': '#2'}, {'character': '将', 'pinyin': 'jiang1', 'highest pitch': 7.6, 'lowest pitch': 6.81, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '是', 'pinyin': 'shiii4', 'highest pitch': 7.6, 'lowest pitch': 5.94, 'duration': 0.2, 'prosody hierarchy': '#1'}, {'character': '空', 'pinyin': 'kong1', 'highest pitch': 9.17, 'lowest pitch': 8.23, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '中', 'pinyin': 'zhong1', 'highest pitch': 8.97, 'lowest pitch': 8.26, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '幺', 'pinyin': 'iao1', 'highest pitch': 10.13, 'lowest pitch': 8.77, 'duration': 0.15, 'prosody hierarchy': 'null'}, {'character': '幺', 'pinyin': 'iao1', 'highest pitch': 10.13, 'lowest pitch': 9.63, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '零', 'pinyin': 'ling2', 'highest pitch': 9.92, 'lowest pitch': 5.5, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 8.77, 'lowest pitch': 7.11, 'duration': 0.14, 'prosody hierarchy': '#1'}, {'character': '发', 'pinyin': 'fa1', 'highest pitch': 8.16, 'lowest pitch': 7.18, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '展', 'pinyin': 'zhan3', 'highest pitch': 7.18, 'lowest pitch': 5.02, 'duration': 0.17, 'prosody hierarchy': '#1'}, {'character': '目', 'pinyin': 'mu4', 'highest pitch': 6.42, 'lowest pitch': 5.65, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '标', 'pinyin': 'biao1', 'highest pitch': 7.87, 'lowest pitch': 6.99, 'duration': 0.31, 'prosody hierarchy': '#4'}]