你为什么要咬脚趾头？
男孩呆坐在地，不时抱起脚趾头，轻轻咬一口。[{'character': '男', 'pinyin': 'nan2', 'highest pitch': 9.99, 'lowest pitch': 7.76, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '孩', 'pinyin': 'hai2', 'highest pitch': 9.99, 'lowest pitch': 6.77, 'duration': 0.29, 'prosody hierarchy': '#1'}, {'character': '呆', 'pinyin': 'dai1', 'highest pitch': 10.53, 'lowest pitch': 9.72, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '坐', 'pinyin': 'zuo4', 'highest pitch': 10.65, 'lowest pitch': 9.32, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '在', 'pinyin': 'zai4', 'highest pitch': 9.66, 'lowest pitch': 7.21, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '地', 'pinyin': 'di4', 'highest pitch': 10.61, 'lowest pitch': 6.94, 'duration': 0.25, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.25}, {'character': '不', 'pinyin': 'bu4', 'highest pitch': 10.12, 'lowest pitch': 9.15, 'duration': 0.14, 'prosody hierarchy': 'null'}, {'character': '时', 'pinyin': 'shiii2', 'highest pitch': 9.36, 'lowest pitch': 8.56, 'duration': 0.22, 'prosody hierarchy': '#1'}, {'character': '抱', 'pinyin': 'bao4', 'highest pitch': 10.72, 'lowest pitch': 9.14, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '起', 'pinyin': 'qi3', 'highest pitch': 8.57, 'lowest pitch': 6.2, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '脚', 'pinyin': 'jiao2', 'highest pitch': 10.77, 'lowest pitch': 6.82, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '趾', 'pinyin': 'zhiii3', 'highest pitch': 11.16, 'lowest pitch': 6.66, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '头', 'pinyin': 'tou5', 'highest pitch': 6.48, 'lowest pitch': 6.32, 'duration': 0.31, 'prosody hierarchy': '#2'}, {'character': '轻', 'pinyin': 'qing1', 'highest pitch': 8.28, 'lowest pitch': 7.06, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '轻', 'pinyin': 'qing1', 'highest pitch': 8.28, 'lowest pitch': 7.06, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '咬', 'pinyin': 'iao3', 'highest pitch': 8.12, 'lowest pitch': 6.84, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '一', 'pinyin': 'i4', 'highest pitch': 10.34, 'lowest pitch': 7.63, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '口', 'pinyin': 'kou3', 'highest pitch': 8.11, 'lowest pitch': 3.2, 'duration': 0.33, 'prosody hierarchy': '#4'}]