你为什么这么担心？
黄学敏皱了皱眉。[{'character': '黄', 'pinyin': 'huang2', 'highest pitch': 11.04, 'lowest pitch': 8.92, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '学', 'pinyin': 'xve2', 'highest pitch': 11.04, 'lowest pitch': 10.36, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '敏', 'pinyin': 'min3', 'highest pitch': 10.96, 'lowest pitch': 5.86, 'duration': 0.3, 'prosody hierarchy': '#2'}, {'character': '皱', 'pinyin': 'zhou4', 'highest pitch': 11.14, 'lowest pitch': 6.53, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '了', 'pinyin': 'le5', 'highest pitch': 9.78, 'lowest pitch': 7.44, 'duration': 0.12, 'prosody hierarchy': 'null'}, {'character': '皱', 'pinyin': 'zhou4', 'highest pitch': 11.14, 'lowest pitch': 7.05, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '眉', 'pinyin': 'mei2', 'highest pitch': 7.52, 'lowest pitch': 5.58, 'duration': 0.36, 'prosody hierarchy': '#4'}]