假如你采用键盘来输入文本，那么每当你按下一个键时，与该键对应的二进制数字代码便被送入微计算机。

If you enter text via a key board, then each time you depress a key, the binary digit code associated with that key is transmitted to the microcomputer.

youdao

假如你采用键盘来输入文本，那么每当你按下一个键时，与该键对应的二进制数字代码便被送入微计算机。

If you enter text vla a key board, then each time you depress a key, the binary digit code associated with that key is transmitted to the microcomputer.

youdao

很多信息亭系统使用触摸屏或者硬件按键和小键盘，把键和屏幕上对象和功能对应起来。

Most kiosks make use either of touch screens or hardware buttons and keypads that are mapped to objects and functions on the screen.

youdao

So in a moment you're going to go ahead and hit the spacebar and then as things fall from the screen when they line up with the left arrow, hit the left arrow with a different arrow, hit that arrow and see how good a score you can get.

一会儿你走到前面，敲一下空格键,当屏幕上面的东西从左边往下掉的时候,你就敲一下键盘上的左键,是哪个方向，敲对应的方向键就可以了,我们来看看你能得多少分。

哈佛公开课 - 计算机科学课程节选