What's the postage on this parcel to Hong Kong, please? 请问寄往香港的这个包裹需要多少邮资？

　　It's $4 by airmail. 航空邮寄的话是4美元。

　　Can you tell me the postage, please? 请把邮资告诉我可以吗？

　　Good morning. I'd like to send two postcards to Japan. Can you tell me the postage, please? 早上好，我想寄两张明信片到日本，请把邮资告诉我可以吗？

　　One dollar for each postcard. 一张明信片一美元。