| 单词 | on (或 upon) request |
| 释义 | 一经要求 Water is served only on request in this restaurant. Your doctor will give, upon request, a letter confirming that you are too ill to work. Application forms are available on request. |
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英汉双解词典包含548777条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。