那么我们需要采取措施控制候鸟迁徙的影响。
而到夏季候鸟北飞，又可能在亚洲北部带来疫情。[{'character': '而', 'pinyin': 'er2', 'highest pitch': 9.93, 'lowest pitch': 7.94, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '到', 'pinyin': 'dao4', 'highest pitch': 10.92, 'lowest pitch': 9.91, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '夏', 'pinyin': 'xia4', 'highest pitch': 11.39, 'lowest pitch': 7.9, 'duration': 0.29, 'prosody hierarchy': 'null'}, {'character': '季', 'pinyin': 'ji4', 'highest pitch': 8.18, 'lowest pitch': 6.56, 'duration': 0.26, 'prosody hierarchy': '#2'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.05}, {'character': '候', 'pinyin': 'hou4', 'highest pitch': 9.47, 'lowest pitch': 7.65, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '鸟', 'pinyin': 'niao2', 'highest pitch': 9.22, 'lowest pitch': 7.12, 'duration': 0.21, 'prosody hierarchy': '#1'}, {'character': '北', 'pinyin': 'bei3', 'highest pitch': 9.56, 'lowest pitch': 4.68, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '飞', 'pinyin': 'fei1', 'highest pitch': 10.31, 'lowest pitch': 9.04, 'duration': 0.28, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.27}, {'character': '又', 'pinyin': 'iou4', 'highest pitch': 8.83, 'lowest pitch': 7.22, 'duration': 0.14, 'prosody hierarchy': '#1'}, {'character': '可', 'pinyin': 'ke3', 'highest pitch': 8.56, 'lowest pitch': 6.34, 'duration': 0.14, 'prosody hierarchy': 'null'}, {'character': '能', 'pinyin': 'neng2', 'highest pitch': 6.84, 'lowest pitch': 5.46, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '在', 'pinyin': 'zai4', 'highest pitch': 8.77, 'lowest pitch': 6.71, 'duration': 0.21, 'prosody hierarchy': '#1'}, {'character': '亚', 'pinyin': 'ia4', 'highest pitch': 9.2, 'lowest pitch': 7.4, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '洲', 'pinyin': 'zhou1', 'highest pitch': 11.04, 'lowest pitch': 9.86, 'duration': 0.17, 'prosody hierarchy': '#1'}, {'character': '北', 'pinyin': 'bei3', 'highest pitch': 9.56, 'lowest pitch': 5.09, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '部', 'pinyin': 'bu4', 'highest pitch': 10.3, 'lowest pitch': 7.53, 'duration': 0.23, 'prosody hierarchy': '#2'}, {'character': '带', 'pinyin': 'dai4', 'highest pitch': 8.1, 'lowest pitch': 6.54, 'duration': 0.12, 'prosody hierarchy': 'null'}, {'character': '来', 'pinyin': 'lai2', 'highest pitch': 7.43, 'lowest pitch': 5.76, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '疫', 'pinyin': 'i4', 'highest pitch': 8.69, 'lowest pitch': 6.29, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '情', 'pinyin': 'qing2', 'highest pitch': 8.21, 'lowest pitch': 6.01, 'duration': 0.4, 'prosody hierarchy': '#4'}]