And think of the amount this individual produces as depending on effort, which in turn depends on how much of his or her income the individual gets to keep at the margin, i.e.(再设想该个体的生产总量视同于其所付出的劳力，这一劳力转而又由其收入的多少决定，该收入为其所能留存的剩余量，即，1-t。)
More... the high fliers with the ultimate status symbol - wives they can afford to keep at home.(此外，有身份的象征是什么呢？---他们可以让妻子在家做家庭主妇。)
Today, Geithner said: "We are going to keep at it until we fix it.(盖特纳于今日说道：“我们要坚持下去，直到我们解决了问题。)
On the other hand, if it gives you pleasure to watch your debt shrink and motivates you to keep at it, then make it manual.(另一方面，如果看着你的债款渐渐减少让你觉得很爽并激励你继续保持下去，那你就人为地去还债。)
If you keep at it, then you should be able to make your development artifacts easier to maintain, and your development process less stressful to carry out.(如果您能持续进行这项工作，那么您就应该可以使您的开发工件更易于维护，使您的开发流程更容易进行。)
The four books I keep at hand are user-friendly.(我手头保存的这四本是比较容易掌握的。)
Israel announced a unilateral ceasefire late on Saturday. It said it would keep at least some troops in Gaza while arrangements are made to prevent Hamas from re-arming.(以色列于上周六单方面宣布停火，并称以方将在加沙地带继续保留部分武装力量，以防止哈马斯再度武装。)
The value of this parameter specifies the maximum number of idle agents to keep at any time.(该参数的值指定任何时候可以保留的闲置代理的最大数目。)
Remember to keep at least one storage area in an Open state so that it can be used as the current active storage area for new documents.(记住至少保留一个存储区域处于Open状态，以便用它作为新文档的当前活动存储区域。)
Keep at it and you'll soon be knocking off your most important tasks easily.(加油干别松劲，你很快就能轻轻松松击破那个最重要的任务。)
