| 释义 |
- n.信函；（尤指）长信
- adj.指令的
- 网络公文；信件；书信
n. letter,epistle,note,communication,memo 1. | 信函；（尤指）长信，公函a letter, especially a long or an official one |
n. | 1. a letter or other written communication, often formal or legal communication 2. a letter, especially a long or important one |
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