Since I am implementing a push-button, I better do something so the user has the visual impression of pushing a button when the mouse is clicked over the button graphic.

因为我实现的是一个下压按钮，最好是能够在鼠标点到按钮图像上的时候，让用户有压下按钮的感受。

His good friend Luchóg, smallest of us all, was forever pushing back an untamable lock of night-black hair that curled across his forehead like the tail of a mouse.

他的好友鲁契克是我们中间最矮小的，总是在挥开额头上一束老鼠尾巴似的、不服帖的漆黑发卷。

Pushing a button on a joystick or a mouse or pressing the enter key inputs the curson's current position.

按下操纵杆上的按钮或鼠标器上的按钮，或按下“输入”键，即可输入光标的当前位置。(动名词作主语)。