Japan lost its AAA rating in 2009 because of a world-leading debt burden. But because of deflation, its bond yields remain at rock-bottom levels.
日本在2009年因为较高的债务负担而失去其AAA评级，但是因为通缩，它的债券收益率仍维持在谷底水平。
Not only had it expanded rapidly in subprime mortgages and student loans but it relied on bond markets for most of its funding.
不仅仅是公司在次债及学生贷款方面扩张过快，而且公司的大多数资金的筹集都依赖与债券市场。
We won't know this until next week when the ECB publishes its bond purchase figures, but it is likely that the Bank was active in the markets in recent days.
这点要到下周央行公布债券购买规模才得知，但有可能的是，央行最近几天在市场多有动作。
Its molecular form, with two atoms joined by a double bond, makes life on Earth possible - but this form had never definitively been seen in space.
两个氧原子以双键形式结合形成氧分子，这种氧分子使地球上的生命成为可能，但这种氧分子从来没有在太空中发现过。
Its molecular form, with two atoms joined by a double bond, makes life on Earth possible - but this form had never definitively been seen in space.
两个氧原子以双键形式结合形成氧分子，这种氧分子使地球上的生命成为可能，但这种氧分子从来没有在太空中发现过。
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