是的，这是一个令人费解的现象。
但没有养育子女负担的无子嗣夫妇，离婚比例却日益升高。[{'character': '但', 'pinyin': 'dan4', 'highest pitch': 9.67, 'lowest pitch': 8.87, 'duration': 0.25, 'prosody hierarchy': '#2'}, {'character': '没', 'pinyin': 'mei2', 'highest pitch': 10.34, 'lowest pitch': 8.61, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '有', 'pinyin': 'iou2', 'highest pitch': 10.85, 'lowest pitch': 10.24, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '养', 'pinyin': 'iang3', 'highest pitch': 10.27, 'lowest pitch': 5.28, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '育', 'pinyin': 'v4', 'highest pitch': 9.36, 'lowest pitch': 5.76, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '子', 'pinyin': 'zii2', 'highest pitch': 9.85, 'lowest pitch': 7.45, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '女', 'pinyin': 'nv3', 'highest pitch': 10.01, 'lowest pitch': 5.1, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '负', 'pinyin': 'fu4', 'highest pitch': 11.82, 'lowest pitch': 5.1, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '担', 'pinyin': 'dan1', 'highest pitch': 8.95, 'lowest pitch': 7.54, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 11.05, 'lowest pitch': 6.29, 'duration': 0.21, 'prosody hierarchy': '#2'}, {'character': '无', 'pinyin': 'u2', 'highest pitch': 11.12, 'lowest pitch': 7.46, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '子', 'pinyin': 'zii3', 'highest pitch': 10.98, 'lowest pitch': 4.61, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '嗣', 'pinyin': 'sii4', 'highest pitch': 7.25, 'lowest pitch': 6.77, 'duration': 0.18, 'prosody hierarchy': '#1'}, {'character': '夫', 'pinyin': 'fu1', 'highest pitch': 8.16, 'lowest pitch': 6.77, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '妇', 'pinyin': 'fu4', 'highest pitch': 11.82, 'lowest pitch': 5.99, 'duration': 0.29, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.3}, {'character': '离', 'pinyin': 'li2', 'highest pitch': 8.79, 'lowest pitch': 6.87, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '婚', 'pinyin': 'huen1', 'highest pitch': 11.21, 'lowest pitch': 8.79, 'duration': 0.21, 'prosody hierarchy': '#1'}, {'character': '比', 'pinyin': 'bi3', 'highest pitch': 11.21, 'lowest pitch': 4.93, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '例', 'pinyin': 'li4', 'highest pitch': 9.88, 'lowest pitch': 4.93, 'duration': 0.25, 'prosody hierarchy': '#2'}, {'character': '却', 'pinyin': 'qve4', 'highest pitch': 7.92, 'lowest pitch': 6.18, 'duration': 0.24, 'prosody hierarchy': '#1'}, {'character': '日', 'pinyin': 'riii4', 'highest pitch': 7.69, 'lowest pitch': 6.35, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '益', 'pinyin': 'i4', 'highest pitch': 6.8, 'lowest pitch': 5.31, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '升', 'pinyin': 'sheng1', 'highest pitch': 8.14, 'lowest pitch': 7.62, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '高', 'pinyin': 'gao1', 'highest pitch': 9.02, 'lowest pitch': 7.98, 'duration': 0.28, 'prosody hierarchy': '#4'}]