我们需要从过去的经验中吸取教训。
过往船只应引以为戒，拧紧“安全弦”，确保航行安全。[{'character': '过', 'pinyin': 'guo4', 'highest pitch': 10.71, 'lowest pitch': 9.47, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '往', 'pinyin': 'uang3', 'highest pitch': 9.47, 'lowest pitch': 6.43, 'duration': 0.24, 'prosody hierarchy': '#1'}, {'character': '船', 'pinyin': 'chuan2', 'highest pitch': 8.41, 'lowest pitch': 6.68, 'duration': 0.27, 'prosody hierarchy': 'null'}, {'character': '只', 'pinyin': 'zhiii1', 'highest pitch': 10.08, 'lowest pitch': 8.34, 'duration': 0.34, 'prosody hierarchy': '#2'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.05}, {'character': '应', 'pinyin': 'ing1', 'highest pitch': 9.89, 'lowest pitch': 9.1, 'duration': 0.28, 'prosody hierarchy': '#1'}, {'character': '引', 'pinyin': 'in2', 'highest pitch': 10.22, 'lowest pitch': 7.3, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '以', 'pinyin': 'i3', 'highest pitch': 10.22, 'lowest pitch': 5.69, 'duration': 0.15, 'prosody hierarchy': '#1'}, {'character': '为', 'pinyin': 'uei2', 'highest pitch': 7.05, 'lowest pitch': 5.09, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '戒', 'pinyin': 'jie4', 'highest pitch': 10.41, 'lowest pitch': 7.05, 'duration': 0.31, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.29}, {'character': '拧', 'pinyin': 'ning2', 'highest pitch': 9.39, 'lowest pitch': 7.68, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '紧', 'pinyin': 'jin3', 'highest pitch': 13.1, 'lowest pitch': 6.12, 'duration': 0.26, 'prosody hierarchy': '#2'}, {'character': '安', 'pinyin': 'an1', 'highest pitch': 10.77, 'lowest pitch': 10.18, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '全', 'pinyin': 'qvan2', 'highest pitch': 10.77, 'lowest pitch': 7.41, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '弦', 'pinyin': 'xian2', 'highest pitch': 9.34, 'lowest pitch': 6.1, 'duration': 0.37, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.08}, {'character': '确', 'pinyin': 'qve4', 'highest pitch': 10.23, 'lowest pitch': 7.78, 'duration': 0.28, 'prosody hierarchy': 'null'}, {'character': '保', 'pinyin': 'bao3', 'highest pitch': 7.63, 'lowest pitch': 5.81, 'duration': 0.21, 'prosody hierarchy': '#2'}, {'character': '航', 'pinyin': 'hang2', 'highest pitch': 9.06, 'lowest pitch': 6.33, 'duration': 0.26, 'prosody hierarchy': 'null'}, {'character': '行', 'pinyin': 'xing2', 'highest pitch': 8.61, 'lowest pitch': 7.57, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '安', 'pinyin': 'an1', 'highest pitch': 10.77, 'lowest pitch': 9.28, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '全', 'pinyin': 'qvan2', 'highest pitch': 10.77, 'lowest pitch': 5.67, 'duration': 0.4, 'prosody hierarchy': '#4'}]