对于大多数人来说，我们喜欢的活动是普通而简单的。
For most of us, the activities we like to do are common and easy.
行为图，比如用例和活动图，代表普通类型的行为。
Behavior diagrams, such as use case and activity diagrams, represent general types of behavior.
在遗留应用程序中有一套工业标准为普通汽车维修活动进行劳务估价。
There are a set of industry-standard labor estimates for common automotive maintenance activities available through a legacy application.
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