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会员注册今日单词：
| 单词 | 中文释义 | 英文释义 | 例句 |
| primer | 介绍性文字（名词） | An introductory, instructional text that describes basic facts about a particular subject | EXAMPLE: The new book about global trade is intended as a primer for readers who are unfamiliar with the topic. 这部有关全球贸易的新书被当作给不熟悉这个主题的读者的入门书。 |
今日短语：
| 短语 | 中文释义 | 英文释义 | 例句 |
| to promise the moon | 做无法兑现的承诺 | To make exaggerated commitments that are impossible to fulfill | EXAMPLE: The nervous young salesman used to promise the moon to make a sale but customers later became angry when problems arose. 这位容易紧张的年青销售员为了成交，常常做出无法实现的承诺，后来出了问题，令顾客十分恼火。 |