我们的运输成本又降低了。
此次燃油附加费下调亦是年内少有的下调。[{'character': '此', 'pinyin': 'cii3', 'highest pitch': 9.07, 'lowest pitch': 8.07, 'duration': 0.27, 'prosody hierarchy': 'null'}, {'character': '次', 'pinyin': 'cii4', 'highest pitch': 10.33, 'lowest pitch': 8.7, 'duration': 0.24, 'prosody hierarchy': '#2'}, {'character': '燃', 'pinyin': 'ran2', 'highest pitch': 9.94, 'lowest pitch': 7.81, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '油', 'pinyin': 'iou2', 'highest pitch': 10.52, 'lowest pitch': 9.91, 'duration': 0.14, 'prosody hierarchy': '#1'}, {'character': '附', 'pinyin': 'fu4', 'highest pitch': 10.59, 'lowest pitch': 8.87, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '加', 'pinyin': 'jia1', 'highest pitch': 10.73, 'lowest pitch': 8.87, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '费', 'pinyin': 'fei4', 'highest pitch': 11.22, 'lowest pitch': 8.74, 'duration': 0.17, 'prosody hierarchy': '#1'}, {'character': '下', 'pinyin': 'xia4', 'highest pitch': 8.89, 'lowest pitch': 6.58, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '调', 'pinyin': 'tiao2', 'highest pitch': 7.53, 'lowest pitch': 5.82, 'duration': 0.33, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.11}, {'character': '亦', 'pinyin': 'i4', 'highest pitch': 8.28, 'lowest pitch': 6.74, 'duration': 0.12, 'prosody hierarchy': 'null'}, {'character': '是', 'pinyin': 'shiii4', 'highest pitch': 7.47, 'lowest pitch': 6.42, 'duration': 0.24, 'prosody hierarchy': '#2'}, {'character': '年', 'pinyin': 'nian2', 'highest pitch': 7.73, 'lowest pitch': 6.11, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '内', 'pinyin': 'nei4', 'highest pitch': 8.82, 'lowest pitch': 7.25, 'duration': 0.21, 'prosody hierarchy': '#1'}, {'character': '少', 'pinyin': 'shao2', 'highest pitch': 9.82, 'lowest pitch': 6.04, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '有', 'pinyin': 'iou3', 'highest pitch': 10.73, 'lowest pitch': 7.52, 'duration': 0.15, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 6.13, 'lowest pitch': 5.7, 'duration': 0.1, 'prosody hierarchy': '#1'}, {'character': '下', 'pinyin': 'xia4', 'highest pitch': 8.89, 'lowest pitch': 5.99, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '调', 'pinyin': 'tiao2', 'highest pitch': 7.53, 'lowest pitch': 5.0, 'duration': 0.38, 'prosody hierarchy': '#4'}]