Action started as an interface and changed into a class over time.

Action开始为一个接口，后来却变成了一个类。

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These Action classes provide an interface to the application's Model layer, acting as a wrapper around the business logic.

这些action类为应用程序的model层提供了一个接口，充当围绕业务逻辑的包装器。

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Business Events Action selector. When this selector is executed on receipt of a message by ESB, it determines which operation from the interface will be invoked to process the message.

ESB在收到一条消息时执行这个选择器，该选择器确定从接口调用哪个操作来处理消息。

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He said the touchscreen interface with the Wii U Gamepad controller, combined with the main-screen action on a television, opens up options that have never been possible.

CNN: 'Mario,' 'Zelda' creator says give the Wii U time

Which conditions (finance, science-policy interface, economic instruments, etc) should be created in order to stimulate effective action?

UNESCO: Representatives of small island states, least developed countries, Latin America and Europe discuss a roadmap towards a blue-green economy | United Nations Educational, Scientific and Cultural Organization