serfn.农奴;奴隶
serf-service settlement自助结算
serf-organized cfiticla自组织临界
serf-generated goodwill自创商誉
Serf-injurious behavior自我伤害行为
Serf-vibration behavior动力特性
serf-concept discrepancy自我概念差异
serf-regulating jet pump可调式射流泵
serf-regulation learning自我调节学习
Serf-organization theory自组织理论
serf-autonomous learning英语自主学习