我们需要找一些员工来参与产品测试。
这些员工要参与产品测试，并及时提供反馈。[{'character': '这', 'pinyin': 'zhe4', 'highest pitch': 11.26, 'lowest pitch': 10.73, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '些', 'pinyin': 'xie1', 'highest pitch': 10.81, 'lowest pitch': 9.24, 'duration': 0.2, 'prosody hierarchy': '#1'}, {'character': '员', 'pinyin': 'van2', 'highest pitch': 9.24, 'lowest pitch': 7.72, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '工', 'pinyin': 'gong1', 'highest pitch': 9.56, 'lowest pitch': 8.12, 'duration': 0.23, 'prosody hierarchy': '#2'}, {'character': '要', 'pinyin': 'iao4', 'highest pitch': 9.53, 'lowest pitch': 7.85, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '参', 'pinyin': 'can1', 'highest pitch': 9.59, 'lowest pitch': 8.89, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '与', 'pinyin': 'v4', 'highest pitch': 9.04, 'lowest pitch': 7.28, 'duration': 0.13, 'prosody hierarchy': '#2'}, {'character': '产', 'pinyin': 'chan2', 'highest pitch': 9.99, 'lowest pitch': 7.28, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '品', 'pinyin': 'pin3', 'highest pitch': 9.87, 'lowest pitch': 5.36, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '测', 'pinyin': 'ce4', 'highest pitch': 9.66, 'lowest pitch': 5.53, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '试', 'pinyin': 'shiii4', 'highest pitch': 12.72, 'lowest pitch': 7.61, 'duration': 0.28, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.22}, {'character': '并', 'pinyin': 'bing4', 'highest pitch': 9.02, 'lowest pitch': 7.39, 'duration': 0.24, 'prosody hierarchy': '#2'}, {'character': '及', 'pinyin': 'ji2', 'highest pitch': 10.37, 'lowest pitch': 7.39, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '时', 'pinyin': 'shiii2', 'highest pitch': 10.23, 'lowest pitch': 7.05, 'duration': 0.22, 'prosody hierarchy': '#2'}, {'character': '提', 'pinyin': 'ti2', 'highest pitch': 7.85, 'lowest pitch': 6.91, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '供', 'pinyin': 'gong1', 'highest pitch': 9.56, 'lowest pitch': 6.91, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '反', 'pinyin': 'fan3', 'highest pitch': 5.43, 'lowest pitch': 4.82, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '馈', 'pinyin': 'kuei4', 'highest pitch': 9.7, 'lowest pitch': 7.02, 'duration': 0.28, 'prosody hierarchy': '#4'}]