So this is a shorthand to achieve the same result.

所以这是实现相同结果的简写。

You're good at shorthand. Take them in shorthand.

你擅长速记，就用速记吧。

Infinite density is a shorthand of saying, " I don't know."

无限密度是说“我不知道”的简写。

Well, I've been taking a correspondence course in typing and shorthand.

我参加了一项有关打字和速记的函授课程。

Hacking in the world of computer science sometimes is a shorthand for writing really impressive code.

计算机科学领域的黑客行为有时是编写真正令人印象深刻的代码的速记。

My typing and shorthand isn't good enough.

我打字和速记都不够熟练。

Would you be willing to take a typing and shorthand test?

你愿意接受打字和速记的测试吗？

Wearing a ruff was an instant shorthand that you had servants to launder, prepare and maintain your life.

戴上拉夫领即意味着你有仆人为你洗衣、做饭和打理生活。

Bruce Lee is shorthand for all of those things.

李小龙就是最佳代言。

So this is the capital Greek letter sigma right over here, it's shorthand math, math shorthand for sum.

这是大写的希腊字母，它是数学中总和的简写。