n.邮费，邮资

Did he pay the postage?
他付邮费了吗？
Eric has an obsession with postage stamps.
埃里克为邮票着迷。
The postage was fifty yuan.
邮费为五十元。
I need to buy a stamp for the postage.
我需要买一张邮票来付邮费。
The letter was returned because of insufficient postage.
这封信因为邮资不足被退回了。
The package requires registered postage for security.
这个包裹需要挂号邮资以确保安全。
The postage for a standard letter within the country is 50 cents.
国内标准信件的邮费是50美分。
I've already affixed the correct postage on the envelope.
我已经在信封上贴了正确的邮票。
The postage rate increased by 10% last year.
去年邮资上涨了10%。
You can calculate the postage online through the postal service's website.
你可以在邮政服务的网站上在线计算邮费。
The parcel exceeded the weight limit and incurred extra postage.
这个包裹超重了，需要额外支付邮费。
The postage for international mail varies depending on the destination.
国际邮件的邮费根据目的地而不同。
They offer a flat-rate shipping option with included postage.
他们提供一种包含邮费的统一费率运输选项。