at/with the push/touch of a buttonused to emphasize how easy a machine is to use because it is controlled by pushing a button 只要按一下按钮〔用于强调机器容易操作〕 The instrument can gauge a distance with the push of a button. 这台仪器只要一按按钮就能测出距离。
→ at/with the push/touch of a button at button1(5)