closed book

相关单词

近义词

mystery 谜，神秘, secret 秘密, enigma 难以理解的事物...

临近词

closedtop, closed, closed impeller, closed aqueduct, closedend trust, closed hospital, Closed itemsets, closed fracture, closed position, closed biddings, closed-orbits, closed subgroup

相似词

close-set, close-up, close/shut the door on sth idiom, closed, closed season, closed shop, closed-casket, closed-circuit television, 返回 closed book