| 单词 | be an open book |
| 释义 | be an open book be an open book► F0 If someone is an open book, it is easy to know what they are thinking and feeling.Thesaurus+: ↑Easy to understandMain Entry: ↑open book |
| 随便看 |
英语词典包含67674条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。