Charging an "entry fee" for use of the service and then a small, fixed per-song cost for downloads turned out to benefit both the seller and the buyer.

向使用服务的人收取“报名费”然后一首歌低的，固定不变的下载成本同时顾及了购买方和销售方的利益。

youdao

The company behind GitHub incurs the cost of hardware assets and charges a nominal fee (usually monthly per user) for other organizations to use Git.

出租github的企业引入了硬件资产成本，因此需要向使用Git的其他组织收取少量费用(通常为每用户每月收取)。

youdao

So here is my golden rule for shopping: Cost Per Use.

接下来我将献上我的黄金购物指南：性价比法。

youdao

If a couple plans to have more than one child, the cost per sibling drops slightly, thanks to re-use of items like car seats and clothing.

FORBES: Magazine Article

Back when oil cost three- and four-dollars-per-barrel, the increased use of ethanol was blamed for high food prices, food riots and starvation of the poor.

CENTERFORSECURITYPOLICY: Fact vs. fiction on food vs. fuel