旋钮
... self-holding push-button 自保持按钮 turn button 旋钮 buzzer 蜂鸣器 ...
在翻阅书的过程中，页面底部的一个透明工具条可以让你通过点击翻页按钮来翻页。
They turn to electronic media such as television, computers, the Internet, videos, CDs and audio equipment, which can provide them with instant self-entertainment at the push of a button.他们转向如电视、电脑、互联网、录像带、光盘和音频设备一类的电子媒体，按下按钮就可自娱自乐。
To turn the bread crumbs on, click the button shown below.要启用“面包屑”工具栏，单击如下所示的按钮。
