哪个季节的农活最辛苦？
家中世代为农，生活困窘。[{'character': '家', 'pinyin': 'jia1', 'highest pitch': 9.63, 'lowest pitch': 8.63, 'duration': 0.28, 'prosody hierarchy': 'null'}, {'character': '中', 'pinyin': 'zhong1', 'highest pitch': 9.62, 'lowest pitch': 9.41, 'duration': 0.26, 'prosody hierarchy': '#2'}, {'character': '世', 'pinyin': 'shiii4', 'highest pitch': 10.89, 'lowest pitch': 9.44, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '代', 'pinyin': 'dai4', 'highest pitch': 9.55, 'lowest pitch': 7.25, 'duration': 0.2, 'prosody hierarchy': '#1'}, {'character': '为', 'pinyin': 'uei4', 'highest pitch': 8.45, 'lowest pitch': 7.0, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '农', 'pinyin': 'nong2', 'highest pitch': 8.45, 'lowest pitch': 6.35, 'duration': 0.3, 'prosody hierarchy': '#2'}, {'character': '生', 'pinyin': 'sheng1', 'highest pitch': 10.83, 'lowest pitch': 10.56, 'duration': 0.26, 'prosody hierarchy': 'null'}, {'character': '活', 'pinyin': 'huo2', 'highest pitch': 10.58, 'lowest pitch': 6.77, 'duration': 0.2, 'prosody hierarchy': '#1'}, {'character': '困', 'pinyin': 'kuen4', 'highest pitch': 10.99, 'lowest pitch': 8.33, 'duration': 0.29, 'prosody hierarchy': 'null'}, {'character': '窘', 'pinyin': 'jiong3', 'highest pitch': 6.42, 'lowest pitch': 4.09, 'duration': 0.32, 'prosody hierarchy': '#4'}]