A restaurant has to tread the tricky path between maintaining quality and keeping prices down.

餐馆必须在保证质量和价格低廉之间走出一条困难的折中之路。

《牛津词典》

High quality customer service is preached by many, but actually keeping customers happy is easier said than done.

许多人鼓吹高质量的客户服务，但实际上让客户高兴说起来容易做起来难。

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Proponents might also argue that maintaining revenues is critical to keeping quality high.

支持者也许会质疑维持收益对于保持高质量是否很重要。

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Edward Lawler at the University of Southern California says these companies may now have difficulty getting and keeping high-quality employees.

VOA: special.2009.10.30

Microsoft could win big by keeping the price of two-screen interaction low using high-quality devices that are rapidly penetrating their target market.

ENGADGET: Switched On: E3, Screen Two

Still, if it can manage this feat, Microsoft could win big by keeping the price of two-screen interaction low using high-quality devices that are rapidly penetrating their target market.

ENGADGET: Switched On: E3, Screen Two

Canada's banks avoided going down the route of those of many developed countries, keeping higher stocks of good quality assets partly thanks to a tighter grip on regulation - much of the credit for which is laid at his door.

BBC: Profile: Mark Carney