脚踏板和键盘开关替代了鼠标按键。

A foot-pedal or keyboard switch then replaces the click of a mouse button.

youdao

你的双手不会再被粘到鼠标和键盘上。

Your hands aren't glued to mouse and keyboard anymore.

youdao

鼠标和键盘会成为冲突中的新武器吗？

Are the mouse and keyboard the new weapons of conflict?

youdao

That's pretty good 'cause now, I can pretty much cover my American keyboard pretty effectively both upper case, lower case, and a whole bunch of punctuation. For other languages as in aside, there are other encoding schemes when there are more characters.

那是相当不错的，它可以包含整个美式键盘中的字符,包括大小写字母和一连串标点,对于其他语言，当涉及更多字符时就会有其他的编码体系。

哈佛公开课 - 计算机科学课程节选

Now, once you know each of those, you can now do 25 more upper case letters and 25 more lower case letters then there are some other stuff like punctuation and things you see on the keyboard.

一旦你知道两者中的任何一个，你就知道了另外25个,大写字母和小写字母,标点和在键盘上的,各种符号也有ASCII码。

哈佛公开课 - 计算机科学课程节选