你听说过昨晚的活动吗？
麦克拉伦发表了主题演讲。[{'character': '麦', 'pinyin': 'mai4', 'highest pitch': 10.4, 'lowest pitch': 8.55, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '克', 'pinyin': 'ke4', 'highest pitch': 9.84, 'lowest pitch': 8.55, 'duration': 0.12, 'prosody hierarchy': '#1'}, {'character': '拉', 'pinyin': 'la1', 'highest pitch': 10.98, 'lowest pitch': 9.21, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '伦', 'pinyin': 'luen2', 'highest pitch': 10.97, 'lowest pitch': 7.51, 'duration': 0.27, 'prosody hierarchy': '#2'}, {'character': '发', 'pinyin': 'fa1', 'highest pitch': 9.85, 'lowest pitch': 8.83, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '表', 'pinyin': 'biao3', 'highest pitch': 9.13, 'lowest pitch': 5.62, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '了', 'pinyin': 'le5', 'highest pitch': 7.55, 'lowest pitch': 5.64, 'duration': 0.13, 'prosody hierarchy': '#1'}, {'character': '主', 'pinyin': 'zhu3', 'highest pitch': 7.92, 'lowest pitch': 5.44, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '题', 'pinyin': 'ti2', 'highest pitch': 8.52, 'lowest pitch': 8.08, 'duration': 0.17, 'prosody hierarchy': '#1'}, {'character': '演', 'pinyin': 'ian2', 'highest pitch': 9.65, 'lowest pitch': 7.0, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '讲', 'pinyin': 'jiang3', 'highest pitch': 9.65, 'lowest pitch': 3.94, 'duration': 0.35, 'prosody hierarchy': '#4'}]