"我知道，但是有时候我觉得一直都只有苦，没有甜。"
要知道先苦后甜啊。[{'character': '要', 'pinyin': 'iao4', 'highest pitch': 8.75, 'lowest pitch': 7.07, 'duration': 0.17, 'prosody hierarchy': '#1'}, {'character': '知', 'pinyin': 'zhiii1', 'highest pitch': 9.19, 'lowest pitch': 7.07, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '道', 'pinyin': 'dao4', 'highest pitch': 9.14, 'lowest pitch': 8.18, 'duration': 0.21, 'prosody hierarchy': '#2'}, {'character': '先', 'pinyin': 'xian1', 'highest pitch': 10.63, 'lowest pitch': 10.01, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '苦', 'pinyin': 'ku3', 'highest pitch': 10.59, 'lowest pitch': 5.4, 'duration': 0.23, 'prosody hierarchy': '#1'}, {'character': '后', 'pinyin': 'hou4', 'highest pitch': 9.12, 'lowest pitch': 7.12, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '甜', 'pinyin': 'tian2', 'highest pitch': 7.11, 'lowest pitch': 4.97, 'duration': 0.28, 'prosody hierarchy': 'null'}, {'character': '啊', 'pinyin': 'a5', 'highest pitch': 8.14, 'lowest pitch': 6.13, 'duration': 0.3, 'prosody hierarchy': '#4'}]