一是提高工作效率，减少时间浪费。
二是加强协作，防止推诿扯皮。[{'character': '二', 'pinyin': 'er4', 'highest pitch': 10.74, 'lowest pitch': 9.19, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '是', 'pinyin': 'shiii4', 'highest pitch': 9.26, 'lowest pitch': 8.3, 'duration': 0.27, 'prosody hierarchy': '#2'}, {'character': '加', 'pinyin': 'jia1', 'highest pitch': 10.97, 'lowest pitch': 10.73, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '强', 'pinyin': 'qiang2', 'highest pitch': 10.97, 'lowest pitch': 6.96, 'duration': 0.21, 'prosody hierarchy': '#1'}, {'character': '协', 'pinyin': 'xie2', 'highest pitch': 9.14, 'lowest pitch': 6.08, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '作', 'pinyin': 'zuo4', 'highest pitch': 10.73, 'lowest pitch': 7.34, 'duration': 0.23, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.19}, {'character': '防', 'pinyin': 'fang2', 'highest pitch': 7.93, 'lowest pitch': 6.41, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '止', 'pinyin': 'zhiii3', 'highest pitch': 7.78, 'lowest pitch': 5.46, 'duration': 0.21, 'prosody hierarchy': '#1'}, {'character': '推', 'pinyin': 'tuei1', 'highest pitch': 9.6, 'lowest pitch': 8.74, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '诿', 'pinyin': 'uei2', 'highest pitch': 9.1, 'lowest pitch': 7.46, 'duration': 0.15, 'prosody hierarchy': '#1'}, {'character': '扯', 'pinyin': 'che3', 'highest pitch': 9.1, 'lowest pitch': 5.02, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '皮', 'pinyin': 'pi2', 'highest pitch': 9.07, 'lowest pitch': 5.47, 'duration': 0.35, 'prosody hierarchy': '#4'}]