我们应该怎样保证系统的稳定性？
用冗余的配置保证错误恢复。[{'character': '用', 'pinyin': 'iong4', 'highest pitch': 10.7, 'lowest pitch': 9.21, 'duration': 0.25, 'prosody hierarchy': '#1'}, {'character': '冗', 'pinyin': 'rong3', 'highest pitch': 9.21, 'lowest pitch': 6.18, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '余', 'pinyin': 'v2', 'highest pitch': 8.29, 'lowest pitch': 6.15, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 11.14, 'lowest pitch': 10.54, 'duration': 0.11, 'prosody hierarchy': '#1'}, {'character': '配', 'pinyin': 'pei4', 'highest pitch': 11.15, 'lowest pitch': 8.14, 'duration': 0.28, 'prosody hierarchy': 'null'}, {'character': '置', 'pinyin': 'zhiii4', 'highest pitch': 9.49, 'lowest pitch': 7.91, 'duration': 0.25, 'prosody hierarchy': '#2'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.04}, {'character': '保', 'pinyin': 'bao3', 'highest pitch': 8.48, 'lowest pitch': 6.59, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '证', 'pinyin': 'zheng4', 'highest pitch': 8.98, 'lowest pitch': 7.59, 'duration': 0.22, 'prosody hierarchy': '#2'}, {'character': '错', 'pinyin': 'cuo4', 'highest pitch': 10.55, 'lowest pitch': 7.65, 'duration': 0.27, 'prosody hierarchy': 'null'}, {'character': '误', 'pinyin': 'u4', 'highest pitch': 8.25, 'lowest pitch': 7.04, 'duration': 0.15, 'prosody hierarchy': '#1'}, {'character': '恢', 'pinyin': 'huei1', 'highest pitch': 10.5, 'lowest pitch': 7.13, 'duration': 0.27, 'prosody hierarchy': 'null'}, {'character': '复', 'pinyin': 'fu4', 'highest pitch': 10.5, 'lowest pitch': 5.71, 'duration': 0.31, 'prosody hierarchy': '#4'}]