上千的退休人员被劝说抵押他们的房子去投资投机性的债券。
Thousands of retirees were persuaded to mortgage their homes to invest in speculative bonds.
此类债券缺乏显著的投资性，事实上，具有若干投机性质。
Such bonds lack outstanding investment characteristics and in fact have speculative characteristics as well.
本计划的第三项内容为技术援助。 援助将由世行提供，以帮助各国建立可投资性更高的本国债券市场。
The third part of the program is technical assistance to be provided by the Bank to help countries develop more investable local bond markets.
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