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closed book的英文翻译是什么意思，词典释义与在线翻译：
参考翻译
- 没法搞清楚的事〔人〕,已了结的事
英英释义
Noun:
-
something that baffles understanding and cannot be explained;
"how it got out is a mystery"
"it remains one of nature's secrets"
closed book的用法和样例：
例句
- Fishing is a closed book to me.
我对钓鱼是一窍不通。 - Nuclear physics is a closed book to me.
核物理学是我完全不懂的一门学科。 - 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。
词汇搭配
- a closed book 未揭开的秘密,高深莫...
