这是一个有风险的任务。
当然，打捞核潜艇的费用不菲。[{'character': '当', 'pinyin': 'dang1', 'highest pitch': 11.11, 'lowest pitch': 10.07, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '然', 'pinyin': 'ran2', 'highest pitch': 10.57, 'lowest pitch': 7.82, 'duration': 0.29, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.15}, {'character': '打', 'pinyin': 'da3', 'highest pitch': 8.27, 'lowest pitch': 6.78, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '捞', 'pinyin': 'lao1', 'highest pitch': 9.53, 'lowest pitch': 6.8, 'duration': 0.23, 'prosody hierarchy': '#2'}, {'character': '核', 'pinyin': 'he2', 'highest pitch': 9.39, 'lowest pitch': 8.18, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '潜', 'pinyin': 'qian2', 'highest pitch': 9.43, 'lowest pitch': 8.34, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '艇', 'pinyin': 'ting3', 'highest pitch': 9.27, 'lowest pitch': 5.6, 'duration': 0.15, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 6.5, 'lowest pitch': 5.6, 'duration': 0.1, 'prosody hierarchy': '#1'}, {'character': '费', 'pinyin': 'fei4', 'highest pitch': 9.32, 'lowest pitch': 6.49, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '用', 'pinyin': 'iong5', 'highest pitch': 8.32, 'lowest pitch': 7.26, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '不', 'pinyin': 'bu4', 'highest pitch': 10.43, 'lowest pitch': 8.87, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '菲', 'pinyin': 'fei3', 'highest pitch': 8.87, 'lowest pitch': 4.55, 'duration': 0.37, 'prosody hierarchy': '#4'}]