The rates at which the banks sell foreign exchange (selling rates) are higher than the rates at which they buy (buying rates).
银行卖出外汇的汇率（卖出价）高于买入外汇的汇率（买入价）。
There are different rates for the different exchange instruments, The rates at which the banks sell foreign exchange (selling rates) are higher than the rates at which they buy (buying rates).
不同的信用工具有不同的汇率，即电汇汇率。 即期交易按即期汇率交割，远期交易按远期汇率交割。
Instead of buying fuel cells, companies can just buy the electricity the cells produce, with rates locked in for 10 years.
企业可以不用购买燃料电池，只购买燃料电池发的电能就可以，供电价格10年内不变。
On the demand side, the Federal Reserve held down mortgage rates by buying up mortgage-backed securities, while Congress offered a generous tax credit to qualifying buyers.
在需求方面，美联储通过购买按揭证券压低住房抵押贷款的利率，同时国会慷慨地为具有资格的买家提供税收减免。
And I look at this statement [from the Federal Reserve] and see that this is a Fed that is trying to push mortgage rates down by buying mortgage securities.
而我看到联储会的这项声明，我发现这是联储会希望经由购买房贷债券来促使房贷利率下降。
So the Fed wants to push down longer-term rates by buying longer-term government bonds.
所以联储希望通过购买长期债券以降低长期利率。
In addition to slashing interest rates, the central bank has been buying bank bonds through its open-market operations to help bring down interest rates.
除大幅降息外，央行还一直在通过公开市场操作买入银行债券，以便帮助利率回落。
Of course, some people might decide that at those rates, they would rather spend the money by, for example, buying new car.
当然，在这样- 2%的利率下，有些人可能会决定，他们宁愿把钱花费掉，比如，买新车。
The point here is that we only have zero rates at the short end, and it’s possible, though not certain, that you can get at least some traction by buying those longer-term bonds.
其关键是我们只在短期这一头是零利率，那么，有可能，虽然不能肯定，你通过购买这些长期债至少得到一定的拉动力。
It's that they also need to keep buying Treasurys, or interest rates will go up and their capital losses will be terrible.
最大的问题在于，他们必须不断购买美国国债，否则利率上升，他们的财产损失就更大得吓人。
The point here is that we only have zero rates at the short end, and it's possible, though not certain, that you can get at least some traction by buying those longer-term bonds.
其关键是我们只在短期这一头是零利率，那么，有可能，虽然不能肯定，你通过购买这些长期债至少得到一定的拉动力。
If the Fed resumes buying bonds, interest rates could fall even lower, potentially driving investors seeking income to dividend-paying stocks.
如果美联储重新决定购买国债，利率会有所降低，可能导致投资者转而投向派发股息的股市。
Of course, the Fed could try to offset this rise in rates by simply buying more debt itself.
当然，美联储可以试着自行购入更多的国债以抵消这种利率上涨。
By buying Treasury securities, the Fed aims to lower long-term interest rates and increase expectations of future inflation.
美联储购买国库券旨在降低长期利率和提高未来的通胀预期。
The dollar has also weakened (buying less), and rates on mortgages have gone up.
美元也已经发生疲软(购买力下降)，而且抵押贷款利率已经上升。
The Fed is now trying to push down long-term interest rates by buying mortgage-backed and perhaps Treasury securities.
美联储正试图通过购买按揭债券或者再加上国债，来推低长期利率。
Or the budget deficit may be so large that the Fed is unwilling to curtail its bond buying and raise rates sufficiently to offset it.
抑或美国的预算赤字届时可能变得如此庞大，以致于美联储不愿意缩减债券购买规模并大幅加息以降低预算赤字。
Because the federal funds rate is already close to zero, the fed has been buying up bonds with a longer maturity to drive down long-term interest rates.
由于联邦资金利率已经接近于零，因此联储开始买入较长期债券，以降低长期资金利率。
The Fed launched the bond buying program late last year in an effort to keep interest rates low and strengthen the economy.
去年年底美联储发起了购买国库券的项目，目的是保持低利率，强化经济。
Nervous investors are buying up Treasurys, sending interest rates lower.
紧张不安的投资者纷纷买进美国国债，推动利率走低。
By buying securities such as Treasury bonds, a central bank can drive down long-term interest rates as well in an effort to stimulate the economy.
通过购买美国国债等证券，央行还可以推低长期利率水平，从而刺激经济。
Did the U.S. government's decision to keep interest rates down lead to increased home buying in the United States in the middle of the last decade?
在前一个十年中期的时候，美国保持低利率的决策是否导致了购房的增加呢？
And we're so good at math we use interest rates to compute our pleasure, over time, after buying something.
我们很擅长数学，运用利率，来计算买东西之后我们随时间增长的快乐。
And we're so good at math we use interest rates to compute our pleasure, over time, after buying something.
我们很擅长数学，运用利率，来计算买东西之后我们随时间增长的快乐。
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