What is the airmail letter rate to Peru?
寄航空信件到秘鲁的邮资是多少？
What's the letter postage rate to foreign countries?
往国外寄信的费用是多少？
What's the standard rate of a letter?
一封信的标准收费是多少？
What's the standard rate to send a letter to Beijing by air?
寄一封平信到北京的标准空邮收费是多少？
What's the standard rate to send a letter to Beijing by air?
寄一封平信到北京的标准空邮收费是多少？
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