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.(再設想該個體的生產總量視同于其所付出的勞力，這一勞力轉而又由其收入的多少決定，該收入為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？---他們可以讓妻子在家做家庭主婦。)

Today, Geithner said: "We are going to keep at it until we fix it.(蓋特納于今日說道：“我們要堅持下去，直到我們解決了問題。)

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，如果看著你的債款漸漸減少讓你覺得很爽并激勵你繼續保持下去，那你就人為地去還債。)

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.(如果您能持續進行這項工作，那么您就應該可以使您的開發工件更易于維護，使您的開發流程更容易進行。)

The four books I keep at hand are user-friendly.(我手頭保存的這四本是比較容易掌握的。)

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.(以色列于上周六單方面宣布停火，并稱以方將在加沙地帶繼續保留部分武裝力量，以防止哈馬斯再度武裝。)

The value of this parameter specifies the maximum number of idle agents to keep at any time.(該參數的值指定任何時候可以保留的閑置代理的最大數目。)

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.(記住至少保留一個存儲區域處于Open狀態，以便用它作為新文檔的當前活動存儲區域。)

Keep at it and you'll soon be knocking off your most important tasks easily.(加油干別松勁，你很快就能輕輕松松擊破那個最重要的任務。)