我们需要寻找降低成本的方法。
同时关闭一些累赘业务。[{'character': '同', 'pinyin': 'tong2', 'highest pitch': 10.33, 'lowest pitch': 8.51, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '时', 'pinyin': 'shiii2', 'highest pitch': 10.33, 'lowest pitch': 7.92, 'duration': 0.29, 'prosody hierarchy': '#2'}, {'character': '关', 'pinyin': 'guan1', 'highest pitch': 9.75, 'lowest pitch': 8.21, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '闭', 'pinyin': 'bi4', 'highest pitch': 9.68, 'lowest pitch': 8.17, 'duration': 0.12, 'prosody hierarchy': '#1'}, {'character': '一', 'pinyin': 'i4', 'highest pitch': 8.17, 'lowest pitch': 6.73, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '些', 'pinyin': 'xie1', 'highest pitch': 9.33, 'lowest pitch': 9.28, 'duration': 0.22, 'prosody hierarchy': '#1'}, {'character': '累', 'pinyin': 'lei2', 'highest pitch': 9.29, 'lowest pitch': 6.48, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '赘', 'pinyin': 'zhuei4', 'highest pitch': 11.36, 'lowest pitch': 8.7, 'duration': 0.22, 'prosody hierarchy': '#1'}, {'character': '业', 'pinyin': 'ie4', 'highest pitch': 8.83, 'lowest pitch': 7.42, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '务', 'pinyin': 'u4', 'highest pitch': 7.44, 'lowest pitch': 5.51, 'duration': 0.28, 'prosody hierarchy': '#4'}]