你知道拱手礼的起源吗？
有记载称，拱手礼在我国已有两千年历史。[{'character': '有', 'pinyin': 'iou3', 'highest pitch': 7.96, 'lowest pitch': 7.18, 'duration': 0.17, 'prosody hierarchy': '#1'}, {'character': '记', 'pinyin': 'ji4', 'highest pitch': 9.73, 'lowest pitch': 7.18, 'duration': 0.15, 'prosody hierarchy': 'null'}, {'character': '载', 'pinyin': 'zai3', 'highest pitch': 8.21, 'lowest pitch': 5.32, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '称', 'pinyin': 'cheng1', 'highest pitch': 9.13, 'lowest pitch': 7.47, 'duration': 0.32, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.18}, {'character': '拱', 'pinyin': 'gong2', 'highest pitch': 10.85, 'lowest pitch': 8.01, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '手', 'pinyin': 'shou2', 'highest pitch': 10.69, 'lowest pitch': 8.98, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '礼', 'pinyin': 'li3', 'highest pitch': 9.12, 'lowest pitch': 5.6, 'duration': 0.22, 'prosody hierarchy': '#1'}, {'character': '在', 'pinyin': 'zai4', 'highest pitch': 7.9, 'lowest pitch': 5.6, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '我', 'pinyin': 'uo3', 'highest pitch': 6.48, 'lowest pitch': 4.37, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '国', 'pinyin': 'guo2', 'highest pitch': 6.98, 'lowest pitch': 5.73, 'duration': 0.22, 'prosody hierarchy': '#2'}, {'character': '已', 'pinyin': 'i2', 'highest pitch': 8.12, 'lowest pitch': 6.93, 'duration': 0.13, 'prosody hierarchy': 'null'}, {'character': '有', 'pinyin': 'iou2', 'highest pitch': 9.32, 'lowest pitch': 8.12, 'duration': 0.14, 'prosody hierarchy': '#1'}, {'character': '两', 'pinyin': 'liang3', 'highest pitch': 9.32, 'lowest pitch': 4.94, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '千', 'pinyin': 'qian1', 'highest pitch': 10.09, 'lowest pitch': 5.41, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '年', 'pinyin': 'nian2', 'highest pitch': 10.09, 'lowest pitch': 7.36, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '历', 'pinyin': 'li4', 'highest pitch': 7.9, 'lowest pitch': 6.65, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '史', 'pinyin': 'shiii3', 'highest pitch': 6.65, 'lowest pitch': 4.28, 'duration': 0.34, 'prosody hierarchy': '#4'}]