你有什么事要跟我说吗？
一坐下，他磨蹭半天不知如何开口。[{'character': '一', 'pinyin': 'i2', 'highest pitch': 9.3, 'lowest pitch': 7.96, 'duration': 0.15, 'prosody hierarchy': 'null'}, {'character': '坐', 'pinyin': 'zuo4', 'highest pitch': 10.4, 'lowest pitch': 8.55, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '下', 'pinyin': 'xia5', 'highest pitch': 8.74, 'lowest pitch': 5.99, 'duration': 0.27, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.15}, {'character': '他', 'pinyin': 'ta1', 'highest pitch': 10.85, 'lowest pitch': 10.68, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '磨', 'pinyin': 'mo2', 'highest pitch': 10.79, 'lowest pitch': 9.0, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '蹭', 'pinyin': 'ceng4', 'highest pitch': 10.61, 'lowest pitch': 8.94, 'duration': 0.18, 'prosody hierarchy': '#1'}, {'character': '半', 'pinyin': 'ban4', 'highest pitch': 10.16, 'lowest pitch': 7.88, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '天', 'pinyin': 'tian1', 'highest pitch': 10.57, 'lowest pitch': 7.88, 'duration': 0.34, 'prosody hierarchy': '#2'}, {'character': '不', 'pinyin': 'bu4', 'highest pitch': 9.39, 'lowest pitch': 6.69, 'duration': 0.15, 'prosody hierarchy': 'null'}, {'character': '知', 'pinyin': 'zhiii1', 'highest pitch': 8.49, 'lowest pitch': 6.69, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '如', 'pinyin': 'ru2', 'highest pitch': 10.14, 'lowest pitch': 7.05, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '何', 'pinyin': 'he2', 'highest pitch': 10.14, 'lowest pitch': 7.15, 'duration': 0.18, 'prosody hierarchy': '#1'}, {'character': '开', 'pinyin': 'kai1', 'highest pitch': 8.08, 'lowest pitch': 7.23, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '口', 'pinyin': 'kou3', 'highest pitch': 7.33, 'lowest pitch': 4.24, 'duration': 0.33, 'prosody hierarchy': '#4'}]