我的指甲怎么突然变得这么脆弱？
而手指甲也一片一片地劈掉，再长出来。[{'character': '而', 'pinyin': 'er2', 'highest pitch': 10.79, 'lowest pitch': 8.37, 'duration': 0.25, 'prosody hierarchy': '#2'}, {'character': '手', 'pinyin': 'shou2', 'highest pitch': 11.55, 'lowest pitch': 8.59, 'duration': 0.27, 'prosody hierarchy': 'null'}, {'character': '指', 'pinyin': 'zhiii3', 'highest pitch': 11.5, 'lowest pitch': 5.4, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '甲', 'pinyin': 'jia2', 'highest pitch': 7.42, 'lowest pitch': 6.31, 'duration': 0.28, 'prosody hierarchy': '#2'}, {'character': '也', 'pinyin': 'ie3', 'highest pitch': 7.54, 'lowest pitch': 6.4, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '一', 'pinyin': 'i2', 'highest pitch': 9.2, 'lowest pitch': 5.5, 'duration': 0.14, 'prosody hierarchy': 'null'}, {'character': '片', 'pinyin': 'pian4', 'highest pitch': 11.28, 'lowest pitch': 9.2, 'duration': 0.23, 'prosody hierarchy': '#1'}, {'character': '一', 'pinyin': 'i2', 'highest pitch': 9.2, 'lowest pitch': 6.63, 'duration': 0.14, 'prosody hierarchy': 'null'}, {'character': '片', 'pinyin': 'pian4', 'highest pitch': 11.28, 'lowest pitch': 6.25, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '地', 'pinyin': 'de5', 'highest pitch': 6.23, 'lowest pitch': 5.57, 'duration': 0.08, 'prosody hierarchy': '#1'}, {'character': '劈', 'pinyin': 'pi1', 'highest pitch': 8.15, 'lowest pitch': 7.32, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '掉', 'pinyin': 'diao4', 'highest pitch': 8.79, 'lowest pitch': 6.06, 'duration': 0.23, 'prosody hierarchy': '#2'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.06}, {'character': '再', 'pinyin': 'zai4', 'highest pitch': 9.17, 'lowest pitch': 8.26, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '长', 'pinyin': 'zhang3', 'highest pitch': 8.26, 'lowest pitch': 1.17, 'duration': 0.23, 'prosody hierarchy': '#1'}, {'character': '出', 'pinyin': 'chu1', 'highest pitch': 9.65, 'lowest pitch': 8.6, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '来', 'pinyin': 'lai5', 'highest pitch': 9.96, 'lowest pitch': 5.93, 'duration': 0.23, 'prosody hierarchy': '#4'}]