書かき留とめ料りょう

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Meanings

1

registered mail fee

The postal charge added when sending a letter or parcel by registered mail (書留).

書かき留とめ料りょうは普ふ通つう郵ゆう便びんの料りょう金きんに加か算さんされます。
The registered mail fee is added on top of the regular postage.