在 Advanced Actions 对话框中（图8），为了执行上面已在第 2 步创建好的业务逻辑，需单击 Add Block Delimiter两次来分别创建预览开始和结束块。

On the Advanced Actions dialog (Figure 8), select Add Block Delimiter twice to create a prepresentation begin and end block for the execution of the business logic created in Step 2, above.

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在一天结束的时候，如果你用你的手指把这个金属块移到一边，不要用力捏它。

At the end of the day, if you move this metal thing aside with your fingers, don't squeeze it too hard.

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开方括号和闭方括号([和])分别标志代码块的开始和结束。

The open and close brackets ([and]) mark the beginning and end of the code block, respectively.

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