同义词： European Union EU European Community EC European Economic Community EEC Common Market Europe
以上来源于: WordNet
Figure 1 represents the object layout, showing the ECS classes' container relationship.
图1表示了对象布局，显示了ecs类的容器关系。
For complex documents, ECS comes in handy, because it has classes defined to manage colors, documents, and more.
对于复杂的文档，ECS非常方便，因为它有定义为管理颜色、文档等的类。
Listing 3 shows the utility class for ECS.
清单3展示了用于ECS的工具类。
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