嗯，这样是为了保护自己的安全。
有人敲窗时，不轻易解锁下车。[{'character': '有', 'pinyin': 'iou3', 'highest pitch': 8.64, 'lowest pitch': 7.88, 'duration': 0.12, 'prosody hierarchy': 'null'}, {'character': '人', 'pinyin': 'ren2', 'highest pitch': 8.85, 'lowest pitch': 7.37, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '敲', 'pinyin': 'qiao1', 'highest pitch': 10.25, 'lowest pitch': 8.85, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '窗', 'pinyin': 'chuang1', 'highest pitch': 10.9, 'lowest pitch': 9.75, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '时', 'pinyin': 'shiii2', 'highest pitch': 10.55, 'lowest pitch': 6.77, 'duration': 0.29, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.13}, {'character': '不', 'pinyin': 'bu4', 'highest pitch': 10.26, 'lowest pitch': 7.99, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '轻', 'pinyin': 'qing1', 'highest pitch': 11.04, 'lowest pitch': 7.99, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '易', 'pinyin': 'i4', 'highest pitch': 11.12, 'lowest pitch': 6.83, 'duration': 0.2, 'prosody hierarchy': '#1'}, {'character': '解', 'pinyin': 'jie2', 'highest pitch': 6.83, 'lowest pitch': 6.07, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '锁', 'pinyin': 'suo3', 'highest pitch': 7.31, 'lowest pitch': 5.38, 'duration': 0.18, 'prosody hierarchy': '#1'}, {'character': '下', 'pinyin': 'xia4', 'highest pitch': 7.57, 'lowest pitch': 5.71, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '车', 'pinyin': 'che1', 'highest pitch': 8.05, 'lowest pitch': 5.74, 'duration': 0.29, 'prosody hierarchy': '#4'}]