I append to the URL a new parameter called t that has the value of the time.
我将URL连接到一个新的参数t,它具有一个时间值。
For example, suppose an estimated value of the time it will take to do a task is 3 months.
例如,假设完成一个任务所花费的估计时间值是3个月。
The opportunity cost of spending $17 on a CD is what you would havedone with the $17 instead, and perhaps the value of the time spentshopping.
花17美元买一张CD的机会成本,就是你用这17美元所能做的其他事情,或许还有你购物所花费的时间价值。
To understand the excitement it caused, you must understand the value of that much money at the time.
VOA: special.2009.02.04
The value of money changes through time because of inflation or deflation; yet, most of our debts are written in money terms.
货币的价值因时而异,那是因为存在通货膨胀和通货紧缩;,但是,我们大多数负债都以货币方式记录。
This is the present value of $1 in one time period, which I'm taking to be a year.
这就是一美元在一段时期内的现值,我只是将一美元持有一年
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