They could be used to insure actual bonds but - in light of their asymmetric character - not to speculate against countries or companies.
它们可以用来给实际债券保险,但——鉴于其不对称的特点——不能用来进行针对国家或企业进行投机。
They could be used to insure actual bonds but - in light of their asymmetric_ character - not to speculate against countries or companies.
它们可以用来给实际债券保险,但鉴于其不对称的特点不能用来进行针对国家或企业进行投机。
Studies on nonalien species have not produced similar results, leading researchers to speculate that avian social learning may be fundamentally different from that of mammals.
对非外来物种的研究没有得到类似的结果,这使得研究人员推测鸟类的社会学习能力可能与哺乳动物的社会学习能力有根本性的区别。
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