In a real application, you might not add such buttons if you want to keep the user interface simple and do both saving and restoring transparently and automatically.

在真实的应用程序中，如果希望保持用户界面简洁并能够透明、自动地保存和恢复表单，则不需要添加这些按钮。

youdao

That was a house to look at; and there lived an old man, who wore plush breeches; and he had a coat with large brass buttons, and a wig that one could see was a real wig.

那里面住着一个老人。 他穿着一条天鹅绒的马裤，一件有大黄铜扣子的上衣；他还戴着一副假发①——人们一眼就可以看出这是真正的假发。

youdao

Traditional user interfaces are evolving from crude rectangular Windows with buttons and menus to full-fledged real-world virtual "gadgets."

传统的用户界面正从有着按钮和菜单的粗糙矩形窗口向成熟的虚拟现实世界的“精美的小器件”演化。

youdao

So it was real hands on, you know, pushing buttons to stop when they stopped and then anticipate when they were going to start again after break.

NPR: Trans-Global Underground: 'Impossible Broadcasting'

The player also doesn't make the most of potential screen real estate, due to the three large buttons and Philips logo taking up roughly a quarter of the its face -- an odd choice, given the GoGear's touchscreen.

ENGADGET: Philips GoGear 3 Android PMP hands-on (video)

These buttons and related code give social networks, which often know people's real names, an unprecedented overview of online behavior.

WSJ: They Know What You're Shopping For