后来他们又失败了。
后来他们咬牙切齿地说能干。[{'character': '后', 'pinyin': 'hou4', 'highest pitch': 9.95, 'lowest pitch': 8.89, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '来', 'pinyin': 'lai2', 'highest pitch': 8.89, 'lowest pitch': 7.21, 'duration': 0.32, 'prosody hierarchy': '#2'}, {'character': '他', 'pinyin': 'ta1', 'highest pitch': 9.54, 'lowest pitch': 9.11, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '们', 'pinyin': 'men5', 'highest pitch': 9.12, 'lowest pitch': 8.41, 'duration': 0.13, 'prosody hierarchy': '#1'}, {'character': '咬', 'pinyin': 'iao3', 'highest pitch': 8.41, 'lowest pitch': 5.09, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '牙', 'pinyin': 'ia2', 'highest pitch': 6.88, 'lowest pitch': 5.09, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '切', 'pinyin': 'qie4', 'highest pitch': 11.12, 'lowest pitch': 9.29, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '齿', 'pinyin': 'chiii3', 'highest pitch': 9.29, 'lowest pitch': 5.3, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '地', 'pinyin': 'de5', 'highest pitch': 5.71, 'lowest pitch': 4.73, 'duration': 0.13, 'prosody hierarchy': '#1'}, {'character': '说', 'pinyin': 'shuo1', 'highest pitch': 9.49, 'lowest pitch': 5.71, 'duration': 0.28, 'prosody hierarchy': '#2'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.06}, {'character': '能', 'pinyin': 'neng2', 'highest pitch': 8.88, 'lowest pitch': 5.96, 'duration': 0.26, 'prosody hierarchy': 'null'}, {'character': '干', 'pinyin': 'gan4', 'highest pitch': 10.4, 'lowest pitch': 6.04, 'duration': 0.29, 'prosody hierarchy': '#4'}]