While the new rates take effect Monday, most post offices are closed on Sunday so officials say items dropped in a box that won't be collected until Monday should have the higher postage on them.

新的邮资费率于周一生效。由于许多邮局周日不营业，所以官员说投到信筒里的物件到周一才会收起，因此在上面附上的邮资需要更多。

youdao

Europe and Rest of World rates will incur additional postage costs.

欧洲或者世界其他地方，可能需要付出额外的邮费。

youdao

The average charge per item, worked out by dividing the total postage payable by the number of items in the posting, is subject to the minimum rates below.

每件邮件平均邮费受以下最低收费限制，每件邮件平均邮费的计算方法是为邮费除以邮件总数。

youdao

The plan would also give the Postal Service more leeway to increase postage rates.

WSJ: Budget Backs Dropping Saturday Mail Service

"Infusing the agency with cash and hiking postage rates without requiring USPS to reduce costs and realign itself to meet America's changing use of mail is just buying a very small amount of time with a very big check, " Mr. Issa said.

WSJ: Budget Backs Dropping Saturday Mail Service

User fees are charges for items like postage stamps, Medicare premiums, veterans' life insurance policies and electricity rates for power supplied by federal agencies such as the Tennessee Valley Authority.

FORBES: Magazine Article