我们要关注粮价的变化。
民以食为天，粮价乃百价之基。[{'character': '民', 'pinyin': 'min2', 'highest pitch': 11.28, 'lowest pitch': 8.48, 'duration': 0.26, 'prosody hierarchy': 'null'}, {'character': '以', 'pinyin': 'i3', 'highest pitch': 11.13, 'lowest pitch': 5.62, 'duration': 0.17, 'prosody hierarchy': '#1'}, {'character': '食', 'pinyin': 'shiii2', 'highest pitch': 9.77, 'lowest pitch': 5.87, 'duration': 0.23, 'prosody hierarchy': '#1'}, {'character': '为', 'pinyin': 'uei2', 'highest pitch': 9.77, 'lowest pitch': 8.33, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '天', 'pinyin': 'tian1', 'highest pitch': 10.11, 'lowest pitch': 9.8, 'duration': 0.36, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.21}, {'character': '粮', 'pinyin': 'liang2', 'highest pitch': 9.65, 'lowest pitch': 6.57, 'duration': 0.29, 'prosody hierarchy': 'null'}, {'character': '价', 'pinyin': 'jia4', 'highest pitch': 11.07, 'lowest pitch': 7.36, 'duration': 0.28, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.06}, {'character': '乃', 'pinyin': 'nai2', 'highest pitch': 7.32, 'lowest pitch': 6.23, 'duration': 0.21, 'prosody hierarchy': '#1'}, {'character': '百', 'pinyin': 'bai3', 'highest pitch': 5.36, 'lowest pitch': 5.08, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '价', 'pinyin': 'jia4', 'highest pitch': 11.07, 'lowest pitch': 5.92, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '之', 'pinyin': 'zhiii1', 'highest pitch': 8.08, 'lowest pitch': 5.92, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '基', 'pinyin': 'ji1', 'highest pitch': 8.65, 'lowest pitch': 7.39, 'duration': 0.28, 'prosody hierarchy': '#4'}]