这是一次很有挑战的活动。
而此次参加人数众多，也让迈向顶点的难度增加。[{'character': '而', 'pinyin': 'er2', 'highest pitch': 10.54, 'lowest pitch': 8.28, 'duration': 0.2, 'prosody hierarchy': '#1'}, {'character': '此', 'pinyin': 'cii3', 'highest pitch': 8.53, 'lowest pitch': 6.25, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '次', 'pinyin': 'cii4', 'highest pitch': 9.37, 'lowest pitch': 7.62, 'duration': 0.24, 'prosody hierarchy': '#1'}, {'character': '参', 'pinyin': 'can1', 'highest pitch': 9.16, 'lowest pitch': 8.37, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '加', 'pinyin': 'jia1', 'highest pitch': 9.67, 'lowest pitch': 8.37, 'duration': 0.17, 'prosody hierarchy': '#1'}, {'character': '人', 'pinyin': 'ren2', 'highest pitch': 8.79, 'lowest pitch': 6.27, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '数', 'pinyin': 'shu4', 'highest pitch': 9.02, 'lowest pitch': 7.18, 'duration': 0.18, 'prosody hierarchy': '#1'}, {'character': '众', 'pinyin': 'zhong4', 'highest pitch': 9.09, 'lowest pitch': 7.18, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '多', 'pinyin': 'duo1', 'highest pitch': 9.21, 'lowest pitch': 8.78, 'duration': 0.23, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.34}, {'character': '也', 'pinyin': 'ie3', 'highest pitch': 7.89, 'lowest pitch': 6.46, 'duration': 0.11, 'prosody hierarchy': 'null'}, {'character': '让', 'pinyin': 'rang4', 'highest pitch': 8.18, 'lowest pitch': 6.57, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '迈', 'pinyin': 'mai4', 'highest pitch': 9.04, 'lowest pitch': 8.18, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '向', 'pinyin': 'xiang4', 'highest pitch': 8.69, 'lowest pitch': 7.48, 'duration': 0.21, 'prosody hierarchy': '#1'}, {'character': '顶', 'pinyin': 'ding2', 'highest pitch': 10.31, 'lowest pitch': 7.03, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '点', 'pinyin': 'dian3', 'highest pitch': 10.75, 'lowest pitch': 5.88, 'duration': 0.14, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 5.9, 'lowest pitch': 5.62, 'duration': 0.09, 'prosody hierarchy': '#1'}, {'character': '难', 'pinyin': 'nan2', 'highest pitch': 7.05, 'lowest pitch': 5.11, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '度', 'pinyin': 'du4', 'highest pitch': 9.11, 'lowest pitch': 7.6, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '增', 'pinyin': 'zeng1', 'highest pitch': 9.06, 'lowest pitch': 8.62, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '加', 'pinyin': 'jia1', 'highest pitch': 9.67, 'lowest pitch': 8.69, 'duration': 0.32, 'prosody hierarchy': '#4'}]