Two signal handlers are connected — one to quit the application when the user closes the window and another to change the greeting that is displayed when the user clicks the button.
两个信号处理器被连接起来——一个用来在用户关闭窗口时退出应用程序，另一个用来在用户点击按钮时，修改显示的欢迎信息。
To change this click the check box for “Custom” and then enter the greeting you want to use.
要改变它，可以点击“定制”，然后输入你想用的祝词。
But this quickly became impossible; the dancer raised his hand in greeting, and all I could do was wait for him to get his change and come out to say hello.
但很快这就不可能了，舞蹈家抬手向我打招呼，我只好等他找好了钱出来问个好。
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