Sequence diagrams can be used to describe the USES of a class or interacting group of classes, thus describing the protocols required for interaction.

序列图可用于描述类或一组相互作用的类的使用，因而描述了交互所需的协议。

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Today, it's unlikely Donohoo will be the first to say hello in a group setting, but interacting with people is easier for him than it once was.

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For established brands, the format provides a direct way of interacting with customers, turning each day's trading into a consumer focus group.

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As the former head of the International Atomic Energy Agency, he won the Nobel Peace Prize for the group's work in nonproliferation and has had a long career interacting with global leaders in international capitals.

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