In this case we have a double bond between a and b, and in this case we have it between b and c.

在这种情况下，我们在，A，与，B，之间有一个双键，而在这种情况下，双键在，B，与，C，之间。

麻省理工公开课 - 化学原理课程节选

The split voice, the development of what you could say is that racial double consciousness that W. E. B. Du Bois talks about, that double consciousness of the racial reality, is manifested in that split in the narrative.

在双重叙述中,双重语气表现了出来,这就是W。，E。，B，Du，Bois所说的，种族双重意识，的发展。

耶鲁公开课 - 1945年后的美国小说课程节选

Typical double-B Cat bonds have rates five points above Libor, compared to three to four for corporate bonds.

FORBES: Catastrophe Bonds

It is mostly higher-rated paper with 28 of the combined 31 deals carrying at least one double-B rating.

FORBES: In low-rate environment, more "high yield" bond issuers forge into 4% territory

In a see-saw motion, deals with at least one double-B rating fell from 39% of the total in September to just 15% last month while those with at least one triple-C rose to 33%, from 24%.

FORBES: Connect