词汇 | RR |
释义 | RR US (TRAIN) 铁路,铁道(railroad的缩写) written abbreviation for railroad US (POST) 乡村邮件投递路线(用于美国乡村地区通信地址中,rural route的缩写) written abbreviation for rural route: used in addresses in some areas in the US (BREATHING) medical specialized呼吸频率(respiratory rate的缩写) written abbreviation for respiratory rate (= the rate at which someone breathes in and out) |
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