| 词汇 | o-b |
| 释义 | o/b preposition ukus written abbreviation for on or before: used before a date in a document, invoice, etc. to show that the date shown is the last acceptable date for something to be paid or done: Investments must be received o/b April 5. |
| 随便看 |
|
反思网英语在线翻译词典收录了377474条英语词汇在线翻译词条，基本涵盖了全部常用英语词汇的中英文双语翻译及用法，是英语学习的有利工具。