这种对滑旱冰的描述阐明了态度的三个组成部分：情感、认知和行为。

This description of roller-skating illustrates the three components of an attitude: affect, cognition, and behavior.

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现在，我们不想给你留下这样一种印象，即这三个组成部分总是完美地结合在一起，共同作用。

Now, we don't want to leave you with the impression that these three components always work together perfectly.

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该云工具主要有三个组成部分。

There are three main parts to Cloud tools.

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And there are three components to the Aufbau Principle.

构造原理,由三个部分组成。

麻省理工公开课 - 固态化学导论课程节选