Select you Horizontal type Tool, and type a brace. I have used the following font, and size.

选择水平文字工具，输入一个大括号，我将如下图设置字体、尺寸等。

youdao

Click the Horizontal Type tool (t). Select a font, size and color in the Character panel.

点击卧式工具(T)的。选择字体，大小和字符面板颜色。

youdao

Click the Horizontal Type tool (t). Select a font, size and color in the Character panel.

点击卧式工具(T)的。选择字体，大小和字符面板颜色。

youdao