相关单词近義詞 vassalage 家臣身份, serfdom 辳奴身份臨近詞serf, Serf-sealing safety tire, Serf-protection behavior, serf - established school, serf-assembled monotayers, Serf-oscillation-driven, serf-weight consolidation, serf-complementary digraphs, serf-organizing feature map, serf-adaptive neural network, serf-etching adhesives system 返回 serfhood