Two new types of nodes are derived from the base node: one for video and another for a podcast.
从基本节点派生出两个新类型的节点：一个用于视频，一个用于播客。
Under the Data Types node, create a new BO named StrObj with a string-typed attribute value named val.
在Data Types节点下，创建一个新的名为StrObj的BO，并将string - typed属性值命名为val。
The Blueprints are a visual scripting system based on the concept of using a node-based interface to create new types of Actors and script level events from within Unreal Engine Editor.
蓝图是一个视觉脚本体系，是在用一个基于节点的界面从虚幻引擎编辑器中创建新型参与者和分级脚本活动的基础上生成的。
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