图6中的生命周期模型充满了普通的活动，这些活动可以在过程阶段中发生。
The lifecycle model in Figure 6 is filled with common activities that take place during its process phases.
跑步是一项如此普通的活动，以至于如果没有奥运会，人们会非常容易忘记它也是一项体育运动。
Running is such a common activity that if the Olympics aren't coming up it's easy to forget that it's even a sport.
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.
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