这个窑洞已经存在了很多年了。
冬暖夏凉的窑洞被一道道裂缝吞噬。[{'character': '冬', 'pinyin': 'dong1', 'highest pitch': 10.41, 'lowest pitch': 10.09, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '暖', 'pinyin': 'nuan3', 'highest pitch': 10.12, 'lowest pitch': 6.12, 'duration': 0.23, 'prosody hierarchy': '#2'}, {'character': '夏', 'pinyin': 'xia4', 'highest pitch': 9.76, 'lowest pitch': 7.7, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '凉', 'pinyin': 'liang2', 'highest pitch': 8.43, 'lowest pitch': 6.51, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 9.45, 'lowest pitch': 8.43, 'duration': 0.09, 'prosody hierarchy': '#1'}, {'character': '窑', 'pinyin': 'iao2', 'highest pitch': 8.97, 'lowest pitch': 6.18, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '洞', 'pinyin': 'dong4', 'highest pitch': 11.19, 'lowest pitch': 7.52, 'duration': 0.29, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.09}, {'character': '被', 'pinyin': 'bei4', 'highest pitch': 9.71, 'lowest pitch': 7.27, 'duration': 0.21, 'prosody hierarchy': '#1'}, {'character': '一', 'pinyin': 'i2', 'highest pitch': 8.06, 'lowest pitch': 6.7, 'duration': 0.15, 'prosody hierarchy': 'null'}, {'character': '道', 'pinyin': 'dao4', 'highest pitch': 9.57, 'lowest pitch': 7.93, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '道', 'pinyin': 'dao4', 'highest pitch': 9.57, 'lowest pitch': 6.92, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '裂', 'pinyin': 'lie4', 'highest pitch': 9.93, 'lowest pitch': 7.2, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '缝', 'pinyin': 'feng4', 'highest pitch': 8.68, 'lowest pitch': 6.78, 'duration': 0.2, 'prosody hierarchy': '#1'}, {'character': '吞', 'pinyin': 'tuen1', 'highest pitch': 12.58, 'lowest pitch': 6.78, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '噬', 'pinyin': 'shiii4', 'highest pitch': 9.92, 'lowest pitch': 5.79, 'duration': 0.27, 'prosody hierarchy': '#4'}]