"辛格是一个非常忙碌的人，可能没有时间参加布什的邀请活动。"
辛格为何要拒绝布什的热情邀请呢？[{'character': '辛', 'pinyin': 'xin1', 'highest pitch': 10.67, 'lowest pitch': 10.25, 'duration': 0.29, 'prosody hierarchy': 'null'}, {'character': '格', 'pinyin': 'ge2', 'highest pitch': 10.3, 'lowest pitch': 7.41, 'duration': 0.33, 'prosody hierarchy': '#2'}, {'character': '为', 'pinyin': 'uei4', 'highest pitch': 11.37, 'lowest pitch': 9.24, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '何', 'pinyin': 'he2', 'highest pitch': 9.68, 'lowest pitch': 7.27, 'duration': 0.17, 'prosody hierarchy': '#1'}, {'character': '要', 'pinyin': 'iao4', 'highest pitch': 8.15, 'lowest pitch': 7.18, 'duration': 0.18, 'prosody hierarchy': '#1'}, {'character': '拒', 'pinyin': 'jv4', 'highest pitch': 7.98, 'lowest pitch': 6.5, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '绝', 'pinyin': 'jve2', 'highest pitch': 6.74, 'lowest pitch': 6.0, 'duration': 0.22, 'prosody hierarchy': '#1'}, {'character': '布', 'pinyin': 'bu4', 'highest pitch': 8.54, 'lowest pitch': 7.72, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '什', 'pinyin': 'shiii2', 'highest pitch': 7.72, 'lowest pitch': 5.83, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 8.38, 'lowest pitch': 5.83, 'duration': 0.12, 'prosody hierarchy': '#1'}, {'character': '热', 'pinyin': 're4', 'highest pitch': 9.1, 'lowest pitch': 8.03, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '情', 'pinyin': 'qing2', 'highest pitch': 8.51, 'lowest pitch': 7.67, 'duration': 0.21, 'prosody hierarchy': '#1'}, {'character': '邀', 'pinyin': 'iao1', 'highest pitch': 10.46, 'lowest pitch': 8.51, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '请', 'pinyin': 'qing3', 'highest pitch': 10.46, 'lowest pitch': 4.73, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '呢', 'pinyin': 'ne5', 'highest pitch': 8.34, 'lowest pitch': 4.92, 'duration': 0.26, 'prosody hierarchy': '#4'}]