All the poll function does is simulate a click on the button.(所有的poll功能所执行的行为都是模拟点击按钮的行为。)
Then, a click-listener is installed on the button, so that when the button is clicked, the first form is submitted via Ajax.(然后，它在按钮上注册一个单击事件，所以当按钮被单击时，第一个表单会通过Ajax方式提交。)
To toggle the text on the button In the application in Figure 7, click Hello!(要切换图7的应用程序中按钮上的文本，单击Hello!)
IconClass: icon CSS class displays the specified icon on the button.(iconClass：图标css类在按钮上显示指定的图标。)
But if their sales forecasting is not on the button, companies risk annoying consumers who cannot get hold of their products because they are out of stock.(但是如果零售商们的销售预测不准确，他们则会面临惹恼消费者的风险；这些消费者会因为他们的断货而无法获得所需的商品。)
Now compile the new KitchenSink, click on the button as before, and you should see the interface shown in Figure 2.(现在编译新的KitchenSink并单击按钮，将看到图2所示的结果。)
Similarly, the second line connects the cb_button_click function to the clicked signal on the button object.(类似地，第二行把cb_button_click函数连接到button对象的clicked信号。)
Set imagemode to clip, which centers the image on the button.(将imagemode设置为clip，这会使按钮上的图像位置居中。)
To change the name on the button control and the help tip displayed when the mouse is over it, right-click the button control and select control.(要修改按钮控件中的名字和鼠标置于其上方时显示的帮助提示，右键单击按钮控件，然后选择Control。)
Then click on the button to move on.(然后按一下按钮继续前进。)
