With interest rates now so low central banks can no longer hope to revive ailing economies by cutting the price of money and making it cheaper for people to borrow - they have run out of ammunition.

• 在利率现在已经很低了的情况下，央行不能再希望通过削减资本价格让人们以更低的价格来借贷以恢复病态的经济-他们已经耗尽了免疫力。