英语词汇“a closed book”的翻译、意思、用法、释义-英汉汉英词典

单词	a closed book
释义	a closed book 完全不懂的学科；尚未揭开的秘密，不为人所知的事，无法理解的事(或人)；高深莫测的事物；谜以上来源于：《21世纪大英汉词典》
随便看	laugh on the wrong (或other) side of one's mouth (或face) laugh on (或 out of) the other (或 wrong) side of the (或 one's mouth, 或 face) laugh or laugh at laugh or laugh at and joke together, laugh or laugh at and titter, laugh or laugh at heartily, laugh or laugh at to one's face, laugh or laugh at with a giggle, laugh out loud laugh out of laugh ... out of court laugh out of court laugh out of the other side of one's mouth laugh out of the other side of the laugh out of the other side of 或 face laugh out of the wrong side of one's mouth laugh out of the wrong side of the laugh out of the wrong side of 或 face laugh out one's consent laugh over ... laugh over (或about) laughs laugh sardonically laughsome laugh someone out of