为什么窗户上有水滴？
这是因为空气中的水蒸气遇冷凝结的原因呀。[{'character': '这', 'pinyin': 'zhe4', 'highest pitch': 10.03, 'lowest pitch': 9.53, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '是', 'pinyin': 'shiii4', 'highest pitch': 9.53, 'lowest pitch': 8.68, 'duration': 0.14, 'prosody hierarchy': '#1'}, {'character': '因', 'pinyin': 'in1', 'highest pitch': 9.99, 'lowest pitch': 8.61, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '为', 'pinyin': 'uei4', 'highest pitch': 9.97, 'lowest pitch': 8.62, 'duration': 0.24, 'prosody hierarchy': '#2'}, {'character': '空', 'pinyin': 'kong1', 'highest pitch': 10.75, 'lowest pitch': 10.38, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '气', 'pinyin': 'qi4', 'highest pitch': 10.62, 'lowest pitch': 8.31, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '中', 'pinyin': 'zhong1', 'highest pitch': 9.89, 'lowest pitch': 8.31, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 9.85, 'lowest pitch': 8.81, 'duration': 0.1, 'prosody hierarchy': '#1'}, {'character': '水', 'pinyin': 'shuei3', 'highest pitch': 8.81, 'lowest pitch': 4.62, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '蒸', 'pinyin': 'zheng1', 'highest pitch': 9.83, 'lowest pitch': 8.26, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '气', 'pinyin': 'qi4', 'highest pitch': 10.62, 'lowest pitch': 7.55, 'duration': 0.29, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.17}, {'character': '遇', 'pinyin': 'v4', 'highest pitch': 8.29, 'lowest pitch': 7.21, 'duration': 0.15, 'prosody hierarchy': 'null'}, {'character': '冷', 'pinyin': 'leng3', 'highest pitch': 7.21, 'lowest pitch': 5.68, 'duration': 0.24, 'prosody hierarchy': '#1'}, {'character': '凝', 'pinyin': 'ning2', 'highest pitch': 10.04, 'lowest pitch': 5.93, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '结', 'pinyin': 'jie2', 'highest pitch': 10.04, 'lowest pitch': 6.67, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 9.85, 'lowest pitch': 6.67, 'duration': 0.13, 'prosody hierarchy': '#1'}, {'character': '原', 'pinyin': 'van2', 'highest pitch': 7.17, 'lowest pitch': 6.07, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '因', 'pinyin': 'in1', 'highest pitch': 9.99, 'lowest pitch': 6.42, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '呀', 'pinyin': 'ia5', 'highest pitch': 7.31, 'lowest pitch': 5.79, 'duration': 0.3, 'prosody hierarchy': '#4'}]