那么现在我们开始计时。
当记者按下秒表后，龚兆春开始沿着软梯向下爬。[{'character': '当', 'pinyin': 'dang1', 'highest pitch': 9.09, 'lowest pitch': 8.63, 'duration': 0.24, 'prosody hierarchy': '#1'}, {'character': '记', 'pinyin': 'ji4', 'highest pitch': 9.72, 'lowest pitch': 6.88, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '者', 'pinyin': 'zhe3', 'highest pitch': 7.73, 'lowest pitch': 5.98, 'duration': 0.2, 'prosody hierarchy': '#2'}, {'character': '按', 'pinyin': 'an4', 'highest pitch': 9.23, 'lowest pitch': 8.03, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '下', 'pinyin': 'xia4', 'highest pitch': 10.84, 'lowest pitch': 6.82, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '秒', 'pinyin': 'miao2', 'highest pitch': 9.69, 'lowest pitch': 6.35, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '表', 'pinyin': 'biao3', 'highest pitch': 9.33, 'lowest pitch': 5.21, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '后', 'pinyin': 'hou4', 'highest pitch': 8.15, 'lowest pitch': 5.77, 'duration': 0.28, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.29}, {'character': '龚', 'pinyin': 'gong1', 'highest pitch': 11.07, 'lowest pitch': 10.29, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '兆', 'pinyin': 'zhao4', 'highest pitch': 10.98, 'lowest pitch': 8.0, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '春', 'pinyin': 'chuen1', 'highest pitch': 10.46, 'lowest pitch': 8.0, 'duration': 0.33, 'prosody hierarchy': '#2'}, {'character': '开', 'pinyin': 'kai1', 'highest pitch': 8.15, 'lowest pitch': 8.02, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '始', 'pinyin': 'shiii3', 'highest pitch': 8.15, 'lowest pitch': 6.1, 'duration': 0.15, 'prosody hierarchy': '#1'}, {'character': '沿', 'pinyin': 'ian2', 'highest pitch': 7.11, 'lowest pitch': 6.03, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '着', 'pinyin': 'zhe5', 'highest pitch': 8.82, 'lowest pitch': 6.84, 'duration': 0.1, 'prosody hierarchy': '#1'}, {'character': '软', 'pinyin': 'ruan3', 'highest pitch': 7.91, 'lowest pitch': 4.64, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '梯', 'pinyin': 'ti1', 'highest pitch': 9.06, 'lowest pitch': 4.96, 'duration': 0.27, 'prosody hierarchy': '#2'}, {'character': '向', 'pinyin': 'xiang4', 'highest pitch': 10.91, 'lowest pitch': 9.06, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '下', 'pinyin': 'xia4', 'highest pitch': 10.84, 'lowest pitch': 7.36, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '爬', 'pinyin': 'pa2', 'highest pitch': 8.36, 'lowest pitch': 5.3, 'duration': 0.38, 'prosody hierarchy': '#4'}]