我们需要加大投入，加快建设速度。
这是保障房建设的“硬杠杠”。[{'character': '这', 'pinyin': 'zhe4', 'highest pitch': 10.61, 'lowest pitch': 9.69, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '是', 'pinyin': 'shiii4', 'highest pitch': 9.69, 'lowest pitch': 8.52, 'duration': 0.27, 'prosody hierarchy': '#2'}, {'character': '保', 'pinyin': 'bao3', 'highest pitch': 8.43, 'lowest pitch': 6.18, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '障', 'pinyin': 'zhang4', 'highest pitch': 10.97, 'lowest pitch': 9.07, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '房', 'pinyin': 'fang2', 'highest pitch': 9.07, 'lowest pitch': 7.64, 'duration': 0.21, 'prosody hierarchy': '#1'}, {'character': '建', 'pinyin': 'jian4', 'highest pitch': 9.42, 'lowest pitch': 8.05, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '设', 'pinyin': 'she4', 'highest pitch': 8.48, 'lowest pitch': 6.7, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 7.09, 'lowest pitch': 6.0, 'duration': 0.12, 'prosody hierarchy': '#1'}, {'character': '硬', 'pinyin': 'ing4', 'highest pitch': 9.7, 'lowest pitch': 7.09, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '杠', 'pinyin': 'gang4', 'highest pitch': 10.76, 'lowest pitch': 8.67, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '杠', 'pinyin': 'gang5', 'highest pitch': 5.99, 'lowest pitch': 4.56, 'duration': 0.24, 'prosody hierarchy': '#4'}]