这两年来他一直承受着巨大的压力。
两年后他的精神堡垒垮塌了。[{'character': '两', 'pinyin': 'liang3', 'highest pitch': 8.24, 'lowest pitch': 7.54, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '年', 'pinyin': 'nian2', 'highest pitch': 9.26, 'lowest pitch': 7.47, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '后', 'pinyin': 'hou4', 'highest pitch': 13.79, 'lowest pitch': 8.59, 'duration': 0.26, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.07}, {'character': '他', 'pinyin': 'ta1', 'highest pitch': 9.31, 'lowest pitch': 7.92, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 7.92, 'lowest pitch': 6.91, 'duration': 0.13, 'prosody hierarchy': '#1'}, {'character': '精', 'pinyin': 'jing1', 'highest pitch': 9.64, 'lowest pitch': 6.91, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '神', 'pinyin': 'shen2', 'highest pitch': 9.57, 'lowest pitch': 6.76, 'duration': 0.22, 'prosody hierarchy': '#1'}, {'character': '堡', 'pinyin': 'bao2', 'highest pitch': 7.59, 'lowest pitch': 6.67, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '垒', 'pinyin': 'lei2', 'highest pitch': 8.3, 'lowest pitch': 7.04, 'duration': 0.18, 'prosody hierarchy': '#2'}, {'character': '垮', 'pinyin': 'kua3', 'highest pitch': 8.21, 'lowest pitch': 8.21, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '塌', 'pinyin': 'ta1', 'highest pitch': 9.31, 'lowest pitch': 7.69, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '了', 'pinyin': 'le5', 'highest pitch': 9.35, 'lowest pitch': 6.09, 'duration': 0.21, 'prosody hierarchy': '#4'}]