部件: component; unit; parts; assembly; subsystem; secundina (pl. secundinae)
存: 动词1.(存在; 生存) exist; live; survive 短语和例子残存 remnant; surviving; 名存实亡 exist only in name but not in reality2.(储存; 保存) store; keep 短语和例子存粮 store up grain; 封存 seal up for safekeeping; 水库存了大量的水。
