我听说你最近一直在做一些志愿工作，是真的吗？
他决定利用业余时间宣传脆骨病，让大家关注脆弱的“瓷娃娃”。[{'character': '他', 'pinyin': 'ta1', 'highest pitch': 9.76, 'lowest pitch': 8.21, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '决', 'pinyin': 'jve2', 'highest pitch': 8.21, 'lowest pitch': 7.57, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '定', 'pinyin': 'ding4', 'highest pitch': 9.35, 'lowest pitch': 7.68, 'duration': 0.15, 'prosody hierarchy': '#1'}, {'character': '利', 'pinyin': 'li4', 'highest pitch': 9.0, 'lowest pitch': 7.75, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '用', 'pinyin': 'iong4', 'highest pitch': 8.09, 'lowest pitch': 6.88, 'duration': 0.19, 'prosody hierarchy': '#2'}, {'character': '业', 'pinyin': 'ie4', 'highest pitch': 10.9, 'lowest pitch': 8.02, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '余', 'pinyin': 'v2', 'highest pitch': 8.82, 'lowest pitch': 7.2, 'duration': 0.13, 'prosody hierarchy': '#1'}, {'character': '时', 'pinyin': 'shiii2', 'highest pitch': 8.63, 'lowest pitch': 5.96, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '间', 'pinyin': 'jian1', 'highest pitch': 8.65, 'lowest pitch': 5.96, 'duration': 0.27, 'prosody hierarchy': '#2'}, {'character': '宣', 'pinyin': 'xvan1', 'highest pitch': 8.99, 'lowest pitch': 8.24, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '传', 'pinyin': 'chuan2', 'highest pitch': 8.4, 'lowest pitch': 5.68, 'duration': 0.26, 'prosody hierarchy': '#1'}, {'character': '脆', 'pinyin': 'cuei4', 'highest pitch': 11.09, 'lowest pitch': 6.82, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '骨', 'pinyin': 'gu3', 'highest pitch': 5.98, 'lowest pitch': 3.9, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '病', 'pinyin': 'bing4', 'highest pitch': 8.35, 'lowest pitch': 5.98, 'duration': 0.26, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.3}, {'character': '让', 'pinyin': 'rang4', 'highest pitch': 7.93, 'lowest pitch': 6.87, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '大', 'pinyin': 'da4', 'highest pitch': 7.32, 'lowest pitch': 6.57, 'duration': 0.13, 'prosody hierarchy': 'null'}, {'character': '家', 'pinyin': 'jia1', 'highest pitch': 7.92, 'lowest pitch': 6.58, 'duration': 0.18, 'prosody hierarchy': '#1'}, {'character': '关', 'pinyin': 'guan1', 'highest pitch': 8.87, 'lowest pitch': 7.47, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '注', 'pinyin': 'zhu4', 'highest pitch': 9.48, 'lowest pitch': 7.9, 'duration': 0.18, 'prosody hierarchy': '#1'}, {'character': '脆', 'pinyin': 'cuei4', 'highest pitch': 11.09, 'lowest pitch': 7.9, 'duration': 0.28, 'prosody hierarchy': 'null'}, {'character': '弱', 'pinyin': 'ruo4', 'highest pitch': 8.6, 'lowest pitch': 6.22, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 6.74, 'lowest pitch': 6.61, 'duration': 0.09, 'prosody hierarchy': '#1'}, {'character': '瓷', 'pinyin': 'cii2', 'highest pitch': 9.68, 'lowest pitch': 6.64, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '娃', 'pinyin': 'ua2', 'highest pitch': 9.34, 'lowest pitch': 5.71, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '娃', 'pinyin': 'ua5', 'highest pitch': 9.44, 'lowest pitch': 7.83, 'duration': 0.24, 'prosody hierarchy': '#4'}]