a closed book

Mathematics is a closed book to me , I'll never understand it.

我对数学一窍不通, 从来都搞不懂.

Nuclear physics is a closed book to me.

核物理学是我完全不懂的一门学科.

The man's early life is a closed book.

那人的早年生活是个不可告人的谜.

Philosophy is a closed book to me.

我对哲学一窍不通.

Nuclear physics is a closed book to most of us.

我们大多数人对原子核物理学一窍不通.

For me, geology is a closed book.

对我来说地质学是一门我完全不懂的学科.

A closed mind is like a closed book; just a block of wood.

封闭的心灵如同一本合上的书, 不过是纸堆罢了.

Hold the CLOSED book in your hand on your lap or on a table.

把关住的书握在手上,或者腿上或者在桌子上.

For many people the Bible is a closed book.

大多数人对《圣经》一无所知.

I'm afraid geophysics is rather a closed book to me.

我对地球物理学一窍不通.

The actress'life a closed book to us.

那个女演员的生活对我们来说是个秘密.

Frank Spriggs was a very able man but something of a closed book

弗兰克·斯普里格斯是一个很有才干的人，但是有些让人捉摸不透。

Economics was a closed book to him.

他对经济学一窍不通。