| 单词 | postal system |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔SAME〕The postal system operates a uniform price structure, so it always costs the same to send a letter. 邮政系统实行统一的价格结构，所以寄一封信收费总是相同的。朗文写作活用〔mail〕Materials, such as letters and packages, handled in a postal system.邮件：在邮政系统中得到处理的东西，例如信件和邮包美国传统〔snail mail〕Mail delivered by a postal system, as distinct from electronic mail.蜗牛邮件，普通邮件：区别于电子邮件的由邮政系统递送的邮件美国传统 |
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