他们是怎么被救下来的？
七点左右，另外四名人员被“东海救幺幺二”救下。[{'character': '七', 'pinyin': 'qi1', 'highest pitch': 11.19, 'lowest pitch': 10.62, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '点', 'pinyin': 'dian2', 'highest pitch': 10.62, 'lowest pitch': 8.01, 'duration': 0.18, 'prosody hierarchy': '#1'}, {'character': '左', 'pinyin': 'zuo3', 'highest pitch': 8.18, 'lowest pitch': 5.18, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '右', 'pinyin': 'iou4', 'highest pitch': 7.0, 'lowest pitch': 5.67, 'duration': 0.24, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.27}, {'character': '另', 'pinyin': 'ling4', 'highest pitch': 11.36, 'lowest pitch': 10.86, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '外', 'pinyin': 'uai4', 'highest pitch': 10.86, 'lowest pitch': 8.79, 'duration': 0.15, 'prosody hierarchy': '#1'}, {'character': '四', 'pinyin': 'sii4', 'highest pitch': 9.54, 'lowest pitch': 8.76, 'duration': 0.14, 'prosody hierarchy': 'null'}, {'character': '名', 'pinyin': 'ming2', 'highest pitch': 8.76, 'lowest pitch': 7.35, 'duration': 0.2, 'prosody hierarchy': '#1'}, {'character': '人', 'pinyin': 'ren2', 'highest pitch': 8.01, 'lowest pitch': 6.37, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '员', 'pinyin': 'van2', 'highest pitch': 7.04, 'lowest pitch': 5.55, 'duration': 0.32, 'prosody hierarchy': '#2'}, {'character': '被', 'pinyin': 'bei4', 'highest pitch': 8.45, 'lowest pitch': 6.6, 'duration': 0.2, 'prosody hierarchy': '#1'}, {'character': '东', 'pinyin': 'dong1', 'highest pitch': 9.4, 'lowest pitch': 6.6, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '海', 'pinyin': 'hai3', 'highest pitch': 9.22, 'lowest pitch': 4.24, 'duration': 0.27, 'prosody hierarchy': '#2'}, {'character': '救', 'pinyin': 'jiou4', 'highest pitch': 9.68, 'lowest pitch': 4.37, 'duration': 0.24, 'prosody hierarchy': '#1'}, {'character': '幺', 'pinyin': 'iao1', 'highest pitch': 10.58, 'lowest pitch': 8.5, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '幺', 'pinyin': 'iao1', 'highest pitch': 10.58, 'lowest pitch': 9.8, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '二', 'pinyin': 'er4', 'highest pitch': 10.58, 'lowest pitch': 6.05, 'duration': 0.18, 'prosody hierarchy': '#1'}, {'character': '救', 'pinyin': 'jiou4', 'highest pitch': 9.68, 'lowest pitch': 5.88, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '下', 'pinyin': 'xia4', 'highest pitch': 6.5, 'lowest pitch': 6.5, 'duration': 0.31, 'prosody hierarchy': '#4'}]