Another way of countering drought is to have a limited amount of mass above ground and to have extensive root networks below ground.

对付干旱的另一种方法是在地面上种植特定数量的植物，并且确保地下有广大的根系网络。

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To further confuse the issue, there is an enormous variation in the amount of sleep people feel happy with.

使这个问题进一步复杂化的是，人们感觉愉快的睡眠时间相差很大。

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There is a limit to the amount of pain we can bear.

我们能忍受的疼痛是有限度的。

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That is the amount of time it took Associated Press photographer Joe Rosenthal to capture a historic image on film.

VOA: special.2010.05.31

One is time, that I think it takes certain amount of time to shed the thoughts, the anxiety in everything else.

第一是时间，要想,摆脱一些想法，摆脱焦虑，是需要一定的时间的。

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Now, the coefficient that relates the amount of heat in to the temperature change is obviously going to be different for these two cases.

在这两个例子中,很显然联系热量和温度变化的系数,是不一样的。

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One of the drawbacks of borrowing from your retirement plan is that the loan amount is no longer being invested in the portfolio of assets in your retirement account and, therefore, the opportunity for diversification using that amount is lost until the amount is returned to the plan.

FORBES: Should You Borrow From Your Retirement Plan?

The rational amount we should therefore put aside during our working lives is the amount to pay for our likely number of years in retirement.

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When you leave the company or retire, you transfer 401(k) assets to the pension plan, and the pension plan converts the rollover amount to an annuity that is actuarially equal to the amount you transferred, guaranteeing you additional lifetime payments in excess of your basic pension checks.

FORBES: How To Make Your 401(k) Last Forever: The Pension Rollover