Such a policy is unlikely as it would expose the bank to potential losses if bonds were not paid back in full.

这样的政策是不可能的，因为当债券不能被足额收回的时会暴露中央银行的潜在损失。

youdao

Central Banks are not only likely to keep their policy rates on hold for the foreseeable future, they may, for good measure, buy more bonds themselves.

在可以预见的将来，央行不止很可能将搁置利率变动的政策，再三考虑之后，他们还可能会自己购买更多的债券。

youdao

Now consider the case in which the central bank wants to establish a bond price that is above the market equilibrium price; in fact, the central bank is then pursuing a minimum price policy for bonds.

现在考虑这种情况，央行想将债券价格确定在高于市场均衡价格的水平；事实上，这时央行实行的是债券最低价格政策。

youdao

He says the BOJ should buy up more government bonds and cut interest rates further, and he hopes the changes will come when the bank holds a policy meeting in a few weeks.

VOA: standard.2009.12.03

Already there is talk of the Bank of England offsetting the pain by printing more money to buy more government bonds (a policy known as quantitative easing).

ECONOMIST: Global economic policy

You can think of having a good portion of your portfolio in bonds as an insurance policy.

FORBES: 5 Bond Funds That Everyone Should Consider

While much of the developed world was either cutting rates or buying bonds to further ease monetary policy, vast swaths of the developing world were increasing rates to rein in inflation.

WSJ: How to Play Central Banks