"open book" in Chinese (Simplified)
开卷坦率的人
Definition
“开卷”指容易理解的事物，或指一个坦率、不隐藏自己想法和感情的人。
Usage Notes (Chinese (Simplified))
此习语多为褒义，用于形容坦率真诚的人，也可指某人太容易被看穿。不要与字面意义的书本混淆。常用表达：“像开卷一样的人”。
Examples
My friend is an open book; you always know what he's thinking.
我的朋友是个**开卷**，你总能知道他在想什么。
She is an open book when it comes to her emotions.
一提到情感，她就是个**开卷**。
This report is an open book; everything is clear and simple.
这份报告就像一本**开卷**，一切都很清楚简单。
I'm an open book—ask me anything you want to know.
我就是个**开卷**，你想问什么都可以。
Some people hide their feelings, but Jake is an open book.
有些人隐藏感情，但杰克就是个**开卷**。
After talking with her for five minutes, you realize she's an open book.
和她聊五分钟，你就会发现她是个**开卷**。