Select Project | Add Class, type the name "Quad.cs" into the dialog box, and press Open to create the class.

选择项目 | 添加类，在对话框中输入“Quad.cs”，点击“打开”以创建类。

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Open and press F4 to show the class hierarchy.

打开并按下 F4以显示类的等级。

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Discover the hierarchical tree structure classes by finding the class in the Model Explorer, double-click to open the class in the editor, and press F4 to open the hierarchy tree.

通过寻找模型搜索器中的类，找出等级树状结构类，双击打开编辑器中的类，按下f 4以打开等级树。

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The press conference is open press.

WHITEHOUSE: Vice President's Schedule

This does rather leave all press outlets open to shakedowns from anyone and everyone.

FORBES: The British Government Has Decided To Censor The Entire World's Press And Media

The series took more than a decade to travel to the U.S., where the first four books were published by a small press, Open City Books, and sold modestly.

WSJ: Hot Series From Hilary Mantel and Edward St. Aubyn: Do You Need to Read the First One?