我们应该加大对交通基础设施的投资。
积极发展公路甩挂运输。[{'character': '积', 'pinyin': 'ji1', 'highest pitch': 10.52, 'lowest pitch': 9.89, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '极', 'pinyin': 'ji2', 'highest pitch': 10.01, 'lowest pitch': 8.53, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '发', 'pinyin': 'fa1', 'highest pitch': 10.0, 'lowest pitch': 8.8, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '展', 'pinyin': 'zhan3', 'highest pitch': 9.36, 'lowest pitch': 5.78, 'duration': 0.31, 'prosody hierarchy': '#2'}, {'character': '公', 'pinyin': 'gong1', 'highest pitch': 11.15, 'lowest pitch': 10.34, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '路', 'pinyin': 'lu4', 'highest pitch': 11.16, 'lowest pitch': 9.01, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '甩', 'pinyin': 'shuai3', 'highest pitch': 9.01, 'lowest pitch': 5.16, 'duration': 0.28, 'prosody hierarchy': 'null'}, {'character': '挂', 'pinyin': 'gua4', 'highest pitch': 10.74, 'lowest pitch': 8.86, 'duration': 0.22, 'prosody hierarchy': '#1'}, {'character': '运', 'pinyin': 'vn4', 'highest pitch': 8.86, 'lowest pitch': 7.08, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '输', 'pinyin': 'shu1', 'highest pitch': 8.77, 'lowest pitch': 7.08, 'duration': 0.32, 'prosody hierarchy': '#4'}]