1. Ý Nghĩa
Open book: dùng để chỉ một người trung thực, thẳng thắn, sẵn sàng chia sẻ suy nghĩ, cảm xúc một cách cởi mở mà không do dự, hoặc chỉ một tình huống dễ hiểu, minh bạch, không che giấu hay bí mật, khiến người khác dễ dàng tiếp cận thông tin.
2. Ví dụ/Examples
Whenever she’s happy, it’s like an open book—you can see it in her big, joyful smile.
The company’s policies are an open book; they are available for everyone to read and understand.
The CEO runs the company like an open book, sharing plans and progress with all employees.
He’s a real open book when it comes to his crush—his face turns red the moment she walks in.
You can easily tell that the party was like an open book—no secrets, just good times and laughter.
At the gym, he’s consistently an open book, always eager to share workout tips and tricks with fellow gymgoers.