Our expectation is that all Luxury Collection properties maintain a minimum 4-star rating and we are proud that the vast majority of our St. Regis properties operate at a 5-star level.

我们希望所有的至尊精选酒店保持至少4星级别，而我们更为大部分的瑞吉酒店留在五星级别而自豪。

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Dealer shall maintain a minimum sales inventory as determined by and agreed to with Wan Chang, sufficient to meet the demands of the Dealer's customers.

经销商必须保持由万昌决定并同意的最低仓存数量，以满足经销商的客户需求。

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That means, for example, a military base would have to maintain a minimum force of security personnel.

CNN: STORY HIGHLIGHTS

Options and futures often carry higher commissions than equity trades and investors in futures will be required to maintain a minimum margin.

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Banks must maintain a minimum amount of capital (equity, mainly) in relation to their loans: the riskier the loans, the more capital they must have.

ECONOMIST: Economics focus