快来，我们需要一辆挖掘机！
一辆挖掘机进入火场，将库房挖开一个大豁口，助消防员灭火。[{'character': '一', 'pinyin': 'i2', 'highest pitch': 9.29, 'lowest pitch': 8.44, 'duration': 0.1, 'prosody hierarchy': 'null'}, {'character': '辆', 'pinyin': 'liang4', 'highest pitch': 10.09, 'lowest pitch': 8.89, 'duration': 0.24, 'prosody hierarchy': '#2'}, {'character': '挖', 'pinyin': 'ua1', 'highest pitch': 10.28, 'lowest pitch': 8.71, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '掘', 'pinyin': 'jve2', 'highest pitch': 9.39, 'lowest pitch': 6.44, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '机', 'pinyin': 'ji1', 'highest pitch': 9.71, 'lowest pitch': 7.2, 'duration': 0.22, 'prosody hierarchy': '#2'}, {'character': '进', 'pinyin': 'jin4', 'highest pitch': 10.14, 'lowest pitch': 8.53, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '入', 'pinyin': 'ru4', 'highest pitch': 8.53, 'lowest pitch': 6.88, 'duration': 0.14, 'prosody hierarchy': '#1'}, {'character': '火', 'pinyin': 'huo2', 'highest pitch': 9.61, 'lowest pitch': 6.49, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '场', 'pinyin': 'chang3', 'highest pitch': 0, 'lowest pitch': 0, 'duration': 0.34, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.17}, {'character': '将', 'pinyin': 'jiang1', 'highest pitch': 11.4, 'lowest pitch': 11.28, 'duration': 0.24, 'prosody hierarchy': '#1'}, {'character': '库', 'pinyin': 'ku4', 'highest pitch': 12.23, 'lowest pitch': 8.78, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '房', 'pinyin': 'fang2', 'highest pitch': 8.88, 'lowest pitch': 6.44, 'duration': 0.29, 'prosody hierarchy': '#2'}, {'character': '挖', 'pinyin': 'ua1', 'highest pitch': 10.28, 'lowest pitch': 8.11, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '开', 'pinyin': 'kai1', 'highest pitch': 9.24, 'lowest pitch': 8.05, 'duration': 0.21, 'prosody hierarchy': '#1'}, {'character': '一', 'pinyin': 'i2', 'highest pitch': 9.29, 'lowest pitch': 7.3, 'duration': 0.12, 'prosody hierarchy': 'null'}, {'character': '个', 'pinyin': 'ge5', 'highest pitch': 10.12, 'lowest pitch': 9.47, 'duration': 0.12, 'prosody hierarchy': '#1'}, {'character': '大', 'pinyin': 'da4', 'highest pitch': 10.57, 'lowest pitch': 6.89, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '豁', 'pinyin': 'huo1', 'highest pitch': 9.08, 'lowest pitch': 6.89, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '口', 'pinyin': 'kou3', 'highest pitch': 7.18, 'lowest pitch': 1.78, 'duration': 0.31, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.23}, {'character': '助', 'pinyin': 'zhu4', 'highest pitch': 7.99, 'lowest pitch': 7.43, 'duration': 0.2, 'prosody hierarchy': '#1'}, {'character': '消', 'pinyin': 'xiao1', 'highest pitch': 9.06, 'lowest pitch': 7.73, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '防', 'pinyin': 'fang2', 'highest pitch': 8.88, 'lowest pitch': 7.07, 'duration': 0.15, 'prosody hierarchy': 'null'}, {'character': '员', 'pinyin': 'van2', 'highest pitch': 8.69, 'lowest pitch': 6.26, 'duration': 0.17, 'prosody hierarchy': '#1'}, {'character': '灭', 'pinyin': 'mie4', 'highest pitch': 10.3, 'lowest pitch': 7.26, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '火', 'pinyin': 'huo3', 'highest pitch': 14.37, 'lowest pitch': 7.26, 'duration': 0.28, 'prosody hierarchy': '#4'}]