"我们需要确保面筋的质量和安全性。"
统一采购的面筋里面含有甲醛。[{'character': '统', 'pinyin': 'tong3', 'highest pitch': 8.99, 'lowest pitch': 7.54, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '一', 'pinyin': 'i1', 'highest pitch': 11.16, 'lowest pitch': 8.45, 'duration': 0.18, 'prosody hierarchy': '#1'}, {'character': '采', 'pinyin': 'cai3', 'highest pitch': 8.73, 'lowest pitch': 6.13, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '购', 'pinyin': 'gou4', 'highest pitch': 8.31, 'lowest pitch': 6.72, 'duration': 0.13, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 7.62, 'lowest pitch': 6.85, 'duration': 0.13, 'prosody hierarchy': '#1'}, {'character': '面', 'pinyin': 'mian4', 'highest pitch': 10.67, 'lowest pitch': 7.08, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '筋', 'pinyin': 'jin1', 'highest pitch': 8.49, 'lowest pitch': 8.15, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '里', 'pinyin': 'li3', 'highest pitch': 8.15, 'lowest pitch': 4.98, 'duration': 0.11, 'prosody hierarchy': 'null'}, {'character': '面', 'pinyin': 'mian4', 'highest pitch': 10.67, 'lowest pitch': 4.98, 'duration': 0.27, 'prosody hierarchy': '#2'}, {'character': '含', 'pinyin': 'han2', 'highest pitch': 8.3, 'lowest pitch': 7.21, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '有', 'pinyin': 'iou2', 'highest pitch': 9.75, 'lowest pitch': 8.3, 'duration': 0.12, 'prosody hierarchy': '#1'}, {'character': '甲', 'pinyin': 'jia3', 'highest pitch': 9.42, 'lowest pitch': 4.61, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '醛', 'pinyin': 'qvan2', 'highest pitch': 8.22, 'lowest pitch': 4.61, 'duration': 0.39, 'prosody hierarchy': '#4'}]