"我很担心儿子的未来。"
张先生说，他攒了不少儿子的决心书、保证书，却无法挽回儿子。[{'character': '张', 'pinyin': 'zhang1', 'highest pitch': 11.45, 'lowest pitch': 10.32, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '先', 'pinyin': 'xian1', 'highest pitch': 11.13, 'lowest pitch': 9.06, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '生', 'pinyin': 'sheng5', 'highest pitch': 9.06, 'lowest pitch': 6.85, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '说', 'pinyin': 'shuo1', 'highest pitch': 8.08, 'lowest pitch': 7.25, 'duration': 0.24, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.24}, {'character': '他', 'pinyin': 'ta1', 'highest pitch': 8.86, 'lowest pitch': 7.62, 'duration': 0.18, 'prosody hierarchy': '#1'}, {'character': '攒', 'pinyin': 'zan3', 'highest pitch': 7.97, 'lowest pitch': 5.21, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '了', 'pinyin': 'le5', 'highest pitch': 6.07, 'lowest pitch': 5.19, 'duration': 0.13, 'prosody hierarchy': '#1'}, {'character': '不', 'pinyin': 'bu4', 'highest pitch': 8.12, 'lowest pitch': 7.38, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '少', 'pinyin': 'shao3', 'highest pitch': 12.86, 'lowest pitch': 5.57, 'duration': 0.17, 'prosody hierarchy': '#1'}, {'character': '儿', 'pinyin': 'er2', 'highest pitch': 12.49, 'lowest pitch': 5.79, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '子', 'pinyin': 'zii5', 'highest pitch': 14.09, 'lowest pitch': 6.09, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 6.97, 'lowest pitch': 5.92, 'duration': 0.15, 'prosody hierarchy': '#1'}, {'character': '决', 'pinyin': 'jve2', 'highest pitch': 7.3, 'lowest pitch': 6.17, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '心', 'pinyin': 'xin1', 'highest pitch': 8.73, 'lowest pitch': 7.3, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '书', 'pinyin': 'shu1', 'highest pitch': 9.58, 'lowest pitch': 8.7, 'duration': 0.26, 'prosody hierarchy': '#2'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.05}, {'character': '保', 'pinyin': 'bao3', 'highest pitch': 5.88, 'lowest pitch': 5.39, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '证', 'pinyin': 'zheng4', 'highest pitch': 10.07, 'lowest pitch': 5.88, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '书', 'pinyin': 'shu1', 'highest pitch': 9.58, 'lowest pitch': 7.02, 'duration': 0.26, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.08}, {'character': '却', 'pinyin': 'qve4', 'highest pitch': 8.24, 'lowest pitch': 6.18, 'duration': 0.23, 'prosody hierarchy': '#1'}, {'character': '无', 'pinyin': 'u2', 'highest pitch': 10.54, 'lowest pitch': 6.02, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '法', 'pinyin': 'fa2', 'highest pitch': 10.46, 'lowest pitch': 7.26, 'duration': 0.21, 'prosody hierarchy': '#1'}, {'character': '挽', 'pinyin': 'uan3', 'highest pitch': 7.26, 'lowest pitch': 5.1, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '回', 'pinyin': 'huei2', 'highest pitch': 5.8, 'lowest pitch': 5.31, 'duration': 0.18, 'prosody hierarchy': '#1'}, {'character': '儿', 'pinyin': 'er2', 'highest pitch': 12.49, 'lowest pitch': 4.93, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '子', 'pinyin': 'zii5', 'highest pitch': 14.09, 'lowest pitch': 6.4, 'duration': 0.21, 'prosody hierarchy': '#4'}]