英语词汇“a closed book”的读音、翻译、释义、用法及例句-智慧网

词汇	a closed book
释义	a closed booka closed book1.■谜, 未揭开的秘密,高深莫测的事物
随便看	water-hardened wire rod water hardening water hardness water hardness ions water haul waterhead water head water-head water header water head site water head test water heater water heater room water-heating system water height water hen water-hickory water holding water holding capacity water-holding capacity water-holding material water-holding pore water-holding porosity water-holding power water hold up

智慧网英语在线翻译词典收录了1155424条英语词汇在线翻译词条，基本涵盖了全部常用英语词汇的中英文双语翻译及用法，是英语学习的有利工具。