为了绿化带的健康，我们需要做些什么？
工人对绿化带喷洒药水。[{'character': '工', 'pinyin': 'gong1', 'highest pitch': 10.93, 'lowest pitch': 10.25, 'duration': 0.26, 'prosody hierarchy': 'null'}, {'character': '人', 'pinyin': 'ren2', 'highest pitch': 10.25, 'lowest pitch': 7.14, 'duration': 0.28, 'prosody hierarchy': '#2'}, {'character': '对', 'pinyin': 'duei4', 'highest pitch': 10.73, 'lowest pitch': 8.63, 'duration': 0.21, 'prosody hierarchy': '#1'}, {'character': '绿', 'pinyin': 'lv4', 'highest pitch': 10.35, 'lowest pitch': 8.69, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '化', 'pinyin': 'hua4', 'highest pitch': 10.02, 'lowest pitch': 8.94, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '带', 'pinyin': 'dai4', 'highest pitch': 10.24, 'lowest pitch': 7.46, 'duration': 0.25, 'prosody hierarchy': '#2'}, {'character': '喷', 'pinyin': 'pen1', 'highest pitch': 9.32, 'lowest pitch': 9.11, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '洒', 'pinyin': 'sa3', 'highest pitch': 9.32, 'lowest pitch': 5.81, 'duration': 0.23, 'prosody hierarchy': '#1'}, {'character': '药', 'pinyin': 'iao4', 'highest pitch': 10.47, 'lowest pitch': 6.62, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '水', 'pinyin': 'shuei3', 'highest pitch': 6.13, 'lowest pitch': 4.81, 'duration': 0.36, 'prosody hierarchy': '#4'}]