我们应该抓紧时间。
然而，当天走得很拖沓。[{'character': '然', 'pinyin': 'ran2', 'highest pitch': 9.53, 'lowest pitch': 8.59, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '而', 'pinyin': 'er2', 'highest pitch': 9.36, 'lowest pitch': 8.37, 'duration': 0.24, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.04}, {'character': '当', 'pinyin': 'dang4', 'highest pitch': 10.63, 'lowest pitch': 9.01, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '天', 'pinyin': 'tian1', 'highest pitch': 10.03, 'lowest pitch': 9.01, 'duration': 0.2, 'prosody hierarchy': '#1'}, {'character': '走', 'pinyin': 'zou3', 'highest pitch': 9.85, 'lowest pitch': 5.42, 'duration': 0.15, 'prosody hierarchy': 'null'}, {'character': '得', 'pinyin': 'de5', 'highest pitch': 9.08, 'lowest pitch': 5.42, 'duration': 0.11, 'prosody hierarchy': '#1'}, {'character': '很', 'pinyin': 'hen3', 'highest pitch': 9.08, 'lowest pitch': 4.67, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '拖', 'pinyin': 'tuo1', 'highest pitch': 11.63, 'lowest pitch': 5.08, 'duration': 0.26, 'prosody hierarchy': 'null'}, {'character': '沓', 'pinyin': 'ta5', 'highest pitch': 8.95, 'lowest pitch': 5.33, 'duration': 0.35, 'prosody hierarchy': '#4'}]