closed-book exam 闭卷 ; 闭卷考试
A Closed Book 合上的书 ; 高深莫测的事物 ; 未揭开的秘密 ; 不理解的事
Closed Book 关上书 ; 情休书 ; 不为人知的人或事
closed-book 关闭书 ; 难理解的事
read closed book 揭开秘密
like a closed book 被迫有趣
to be a closed book 意指无法明了的事
closed-book test 不可看书的考试
Sarah closed the book and laid it aside.
萨拉合上书并将其放到了一边。
《柯林斯英汉双解大词典》
Frank Spriggs was a very able man but something of a closed book.
弗兰克· 斯普里格斯是个非常能干的人，却不被人所知晓。
Slowly he closed the book.
慢慢地他把书合上了。
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