There are absolutely going to be times where you're running a program where the programmer, say you, didn't possibly know in advanced how much RAM the program was going to need.

它们总是在,程序员运行程序的地方，你可能预先不知道那个程序,需要多少内存。

哈佛公开课 - 计算机科学课程节选

Programmers often write TODO with no space, all caps like this which means "I have to do something here."

程序员通常写TODO不使用空格，像这样的大写意思是“这里我需要做些事情“

哈佛公开课 - 计算机科学课程节选