存在和控制

virtual presence and control  detail>>

存在和生成

being and becoming  detail>>

存在和唯一定理

existence and uniqueness theorem  detail>>

硅的存在和制备

occurrence and preparation of silicon  detail>>

社会存在和社会意识

social being and social consciousness  detail>>

由于你的存在和呼吸

because you live and breathe  detail>>