closed
英 [kləʊzd]
美[klozd]
- adj. 关着的;不公开的
- v. 关;结束;接近(close的过去分词)
词组搭配
behind closed doors
taking place secretly or without public knowledge
秘密地;暗中地
closed book
a subject or person about which one knows nothing
完全理解不了的科目;完全理解不了的人
accounting has always been &B{a closed book to} me.
会计学对我来说一直是一门完全理解不了的科目。