People are bound within relationships by two types of bonds: expressive ties and instrumental ties.

人们注定与两种类型的人际关系紧密相连：情感纽带和工具纽带。

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There are many types of bonds. We can classify bonds in various ways.

债券的种类很多，可以按不同的方法来分类。

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The ten-year expected rate of inflation implied by yields on these two types of bonds has reached 2.5%.

根据这两种债券的收益所显示的10年预期通胀率已经达到了2.5%。

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In valence bond theory, the focus is on discussing the bonds, but it should look very familiar to you, because there's two types of bonds that we want to discuss here.

在价电子成键理论中，所关注的是讨论成键，但这对于你们来说应该很熟悉，因为这是我们要讨论的两种键。

麻省理工公开课 - 化学原理课程节选

So those are our three types of bonds in ethene.

这就是乙烷里的三种间。

麻省理工公开课 - 化学原理课程节选

So that's two of our types of bonds in benzene, and we have one type left, that's going to actually be the double bond or the pi bond that So we can have one bond here between this carbon's p orbital and this carbon's p orbital.

这就是苯环里的两种键，我们还剩一种，那就是这些p轨道之间，形成的双键或者π键,我们可以在这个碳的p轨道,和这个碳的p轨道之间有个键。

麻省理工公开课 - 化学原理课程节选

With interest rates low, money has flooded into all types of bonds and bond funds.

FORBES: Are Floating Rate Funds The Wrong Answer To Rising Rates?

Apple laid out its plans to issue six different types of bonds in a Tuesday regulatory filing.

NPR: Apple Sells $17 Billion In Bonds In Record Deal

Also realize that munis are not as liquid as other types of bonds, so plan on holding them to maturity if you can.

FORBES: Why You Should Stop Worrying And Love Muni Bonds