adj.关闭着的，封闭着的；密闭着的，保密的；准备好了的，定了契约的；v.“close”的过去式和过去分词； 英英释义： closed[ kləuzd ]adj.not open or affording passage or access"the many closed streets made travel difficult"; "our neighbors peeped from behind closed curtains"(set theory) of an interval that con