"这个任务需要多长时间完成呢？"
需要大约（两小时）。[{'character': '需', 'pinyin': 'xv1', 'highest pitch': 9.47, 'lowest pitch': 9.25, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '要', 'pinyin': 'iao4', 'highest pitch': 9.28, 'lowest pitch': 7.8, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '大', 'pinyin': 'da4', 'highest pitch': 9.6, 'lowest pitch': 7.8, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '约', 'pinyin': 've1', 'highest pitch': 9.51, 'lowest pitch': 8.6, 'duration': 0.14, 'prosody hierarchy': '#1'}, {'character': '两', 'pinyin': 'liang2', 'highest pitch': 10.36, 'lowest pitch': 7.44, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '小', 'pinyin': 'xiao3', 'highest pitch': 10.64, 'lowest pitch': 5.96, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '时', 'pinyin': 'shiii2', 'highest pitch': 6.77, 'lowest pitch': 5.53, 'duration': 0.35, 'prosody hierarchy': '#4'}]