为什么像兔子一样的动物会有这么长的耳朵呢？
长耳朵能帮助它扇动空气，寻找气味来源。[{'character': '长', 'pinyin': 'chang2', 'highest pitch': 9.75, 'lowest pitch': 7.79, 'duration': 0.28, 'prosody hierarchy': 'null'}, {'character': '耳', 'pinyin': 'er3', 'highest pitch': 11.11, 'lowest pitch': 4.97, 'duration': 0.29, 'prosody hierarchy': 'null'}, {'character': '朵', 'pinyin': 'duo5', 'highest pitch': 7.01, 'lowest pitch': 4.97, 'duration': 0.21, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.07}, {'character': '能', 'pinyin': 'neng2', 'highest pitch': 8.05, 'lowest pitch': 1.8, 'duration': 0.23, 'prosody hierarchy': '#1'}, {'character': '帮', 'pinyin': 'bang1', 'highest pitch': 8.09, 'lowest pitch': 7.84, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '助', 'pinyin': 'zhu4', 'highest pitch': 8.36, 'lowest pitch': 6.4, 'duration': 0.13, 'prosody hierarchy': 'null'}, {'character': '它', 'pinyin': 'ta1', 'highest pitch': 8.31, 'lowest pitch': 7.68, 'duration': 0.23, 'prosody hierarchy': '#2'}, {'character': '扇', 'pinyin': 'shan1', 'highest pitch': 9.78, 'lowest pitch': 9.46, 'duration': 0.26, 'prosody hierarchy': 'null'}, {'character': '动', 'pinyin': 'dong4', 'highest pitch': 10.24, 'lowest pitch': 7.36, 'duration': 0.14, 'prosody hierarchy': '#1'}, {'character': '空', 'pinyin': 'kong1', 'highest pitch': 10.3, 'lowest pitch': 7.36, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '气', 'pinyin': 'qi4', 'highest pitch': 11.81, 'lowest pitch': 10.0, 'duration': 0.25, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.07}, {'character': '寻', 'pinyin': 'xvn2', 'highest pitch': 7.19, 'lowest pitch': 6.41, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '找', 'pinyin': 'zhao3', 'highest pitch': 7.05, 'lowest pitch': 5.27, 'duration': 0.22, 'prosody hierarchy': '#2'}, {'character': '气', 'pinyin': 'qi4', 'highest pitch': 11.81, 'lowest pitch': 9.74, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '味', 'pinyin': 'uei4', 'highest pitch': 9.74, 'lowest pitch': 5.87, 'duration': 0.13, 'prosody hierarchy': '#1'}, {'character': '来', 'pinyin': 'lai2', 'highest pitch': 6.18, 'lowest pitch': 5.49, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '源', 'pinyin': 'van2', 'highest pitch': 6.92, 'lowest pitch': 5.38, 'duration': 0.3, 'prosody hierarchy': '#4'}]