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正值几辆摩托强行闯关之时，该桥突然垮塌。[{'character': '正', 'pinyin': 'zheng4', 'highest pitch': 11.41, 'lowest pitch': 9.49, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '值', 'pinyin': 'zhiii2', 'highest pitch': 9.49, 'lowest pitch': 8.27, 'duration': 0.18, 'prosody hierarchy': '#1'}, {'character': '几', 'pinyin': 'ji3', 'highest pitch': 8.26, 'lowest pitch': 6.9, 'duration': 0.11, 'prosody hierarchy': 'null'}, {'character': '辆', 'pinyin': 'liang4', 'highest pitch': 7.83, 'lowest pitch': 6.77, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '摩', 'pinyin': 'mo2', 'highest pitch': 7.13, 'lowest pitch': 6.14, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '托', 'pinyin': 'tuo5', 'highest pitch': 14.2, 'lowest pitch': 7.11, 'duration': 0.26, 'prosody hierarchy': '#2'}, {'character': '强', 'pinyin': 'qiang2', 'highest pitch': 9.18, 'lowest pitch': 7.58, 'duration': 0.29, 'prosody hierarchy': 'null'}, {'character': '行', 'pinyin': 'xing2', 'highest pitch': 9.21, 'lowest pitch': 8.03, 'duration': 0.21, 'prosody hierarchy': '#1'}, {'character': '闯', 'pinyin': 'chuang3', 'highest pitch': 9.21, 'lowest pitch': 5.41, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '关', 'pinyin': 'guan1', 'highest pitch': 9.68, 'lowest pitch': 5.77, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '之', 'pinyin': 'zhiii1', 'highest pitch': 9.52, 'lowest pitch': 7.86, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '时', 'pinyin': 'shiii2', 'highest pitch': 7.86, 'lowest pitch': 6.17, 'duration': 0.3, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.25}, {'character': '该', 'pinyin': 'gai1', 'highest pitch': 7.62, 'lowest pitch': 7.1, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '桥', 'pinyin': 'qiao2', 'highest pitch': 7.1, 'lowest pitch': 5.83, 'duration': 0.27, 'prosody hierarchy': '#1'}, {'character': '突', 'pinyin': 'tu1', 'highest pitch': 10.62, 'lowest pitch': 10.34, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '然', 'pinyin': 'ran2', 'highest pitch': 10.34, 'lowest pitch': 7.71, 'duration': 0.17, 'prosody hierarchy': '#1'}, {'character': '垮', 'pinyin': 'kua3', 'highest pitch': 8.83, 'lowest pitch': 8.54, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '塌', 'pinyin': 'ta1', 'highest pitch': 7.63, 'lowest pitch': 6.91, 'duration': 0.33, 'prosody hierarchy': '#4'}]