Because it is an area of outstanding natural beauty, the number of boats available for hire on the river is limited.

这是一个自然风景极美的地方，所以河上可供租用的船只数量有限。

《柯林斯英汉双解大词典》

Instead, the expansion of agriculture and a steady decrease in the number of male farmworkers combined to cause the industry to hire more women in the postwar years.

相反，农业的扩张和男性农场工人数量的持续下降，导致了该行业在战后雇用了更多的女性。

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The post office needs to minimize the number of employees it needs to hire to meet its demand.

邮局需要对满足自己需要的雇员数目实现最小化。

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Now a growing number of companies and hospitals will not hire smokers,or worse, will fire them if they are caught lighting up.

VOA: standard.2010.02.18

The Southern Christian Leadership Conference, the group he led, created a program called Operation Breadbasket that called for companies to hire a certain number of blacks.

CNN: Why conservatives call MLK their hero

For example, a 20% rise in the minimum wage might result in a 10% increase in total employee compensation at companies that hire a large number of workers at the minimum wage.

FORBES: Though Income Can't Be Legislated, Obama's Minimum Wage Hike Is Not A Bad Idea

Trust also enables a firm to hire a large number of plant managers, because the CEO will feel comfortable delegating decisions to their direct reports without spending too much time on supervision.

FORBES: Most Economics is Just Organised Common Sense