"我们需要一个地方来处理河道中的污染物。"
设在河道中央的筛洗点。[{'character': '设', 'pinyin': 'she4', 'highest pitch': 10.46, 'lowest pitch': 8.33, 'duration': 0.26, 'prosody hierarchy': 'null'}, {'character': '在', 'pinyin': 'zai4', 'highest pitch': 9.54, 'lowest pitch': 8.26, 'duration': 0.23, 'prosody hierarchy': '#2'}, {'character': '河', 'pinyin': 'he2', 'highest pitch': 8.26, 'lowest pitch': 6.58, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '道', 'pinyin': 'dao4', 'highest pitch': 9.77, 'lowest pitch': 7.34, 'duration': 0.2, 'prosody hierarchy': '#1'}, {'character': '中', 'pinyin': 'zhong1', 'highest pitch': 10.46, 'lowest pitch': 9.71, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '央', 'pinyin': 'iang1', 'highest pitch': 11.09, 'lowest pitch': 10.46, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 10.81, 'lowest pitch': 8.48, 'duration': 0.11, 'prosody hierarchy': '#1'}, {'character': '筛', 'pinyin': 'shai1', 'highest pitch': 8.94, 'lowest pitch': 7.51, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '洗', 'pinyin': 'xi2', 'highest pitch': 8.18, 'lowest pitch': 6.47, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '点', 'pinyin': 'dian3', 'highest pitch': 6.96, 'lowest pitch': 2.13, 'duration': 0.29, 'prosody hierarchy': '#4'}]