| 单词 | RR |
| 释义 | RRMail RR, R.R. /ˌɑːr ˈɑː $ ˌɑːr-/ TCM (rural route) used in addresses in country areas of the US, to show which postal delivery area a letter should go to 乡村投递路线〔用于美国乡村地区的通信地址中〕 |
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