"他从什么时候开始追踪莫瑞了？"
他通过“脸谱”开始追踪莫瑞。[{'character': '他', 'pinyin': 'ta1', 'highest pitch': 9.88, 'lowest pitch': 9.47, 'duration': 0.22, 'prosody hierarchy': '#1'}, {'character': '通', 'pinyin': 'tong1', 'highest pitch': 10.1, 'lowest pitch': 9.37, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '过', 'pinyin': 'guo4', 'highest pitch': 10.41, 'lowest pitch': 8.11, 'duration': 0.12, 'prosody hierarchy': '#1'}, {'character': '脸', 'pinyin': 'lian2', 'highest pitch': 10.95, 'lowest pitch': 6.73, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '谱', 'pinyin': 'pu3', 'highest pitch': 10.95, 'lowest pitch': 3.97, 'duration': 0.34, 'prosody hierarchy': '#2'}, {'character': '开', 'pinyin': 'kai1', 'highest pitch': 8.05, 'lowest pitch': 6.95, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '始', 'pinyin': 'shiii3', 'highest pitch': 7.14, 'lowest pitch': 4.86, 'duration': 0.13, 'prosody hierarchy': '#1'}, {'character': '追', 'pinyin': 'zhuei1', 'highest pitch': 7.67, 'lowest pitch': 7.19, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '踪', 'pinyin': 'zong1', 'highest pitch': 8.83, 'lowest pitch': 7.43, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '莫', 'pinyin': 'mo4', 'highest pitch': 9.53, 'lowest pitch': 7.64, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '瑞', 'pinyin': 'ruei4', 'highest pitch': 9.81, 'lowest pitch': 7.76, 'duration': 0.27, 'prosody hierarchy': '#4'}]