survivaln.幸存；幸存者；生存；残存物，幸存物；【人类学】(失去原有意义、作用的)残存文化特征survival ration救生口粮survival rights生存权益survival percent成活率Survival threats生存胁迫survival economy生存经济survival quality生存质量Survival Indexes生存指标survival pattern生存模式survival concept生存概念survival network抗毁网络