button [ˈbʌtn]

以下由轻松背单词网站提供

n.钮扣，按钮；v.扣住

a small , usually circular object used to fasten something, for example a shirt or coat

Press the button, then the machine will work. 按下电钮，机器就能转动了。
Push the button on top of the camera. 按一下相机上面的按钮。