The child had to push a button as soon as he saw the face.

试验要求每个孩子看到一幅人脸图像就立即按下一个按钮。

youdao

My great aunt answers her house phone every time, not by pressing the talk button, but by pressing the speaker phone button, yet still holding it up to her face as if she answered it normally.

我的远房姑姑每次接电话都不太正常，人家是按通话键，她是按免提，然后还要把听筒放在耳朵旁边，不知道的人远看还以为她确实是以正常方式接的电话。

youdao

Is that you can change teh face of the watch with a click of a button.

单击按钮你就可以改变手表的表面。

youdao

Daisywheel divides the alphabet into eight groups of four, assigning each letter to a controller face button based on the position of the left-analog stick.

ENGADGET: Steam Big Picture beta hands-on HD

It is clear that real competition in search is far from being a click away, and that creativity and true innovation face the delete button.

ECONOMIST: Letters

The CLOCK button on the very left operates the chronograph, same as the CHR button on the clock face.

FORBES: What Do All The Controls In An Airplane Cockpit Do?