And I have to admit, I did the standard thing you do every time you run across something you don't know about, you go to Wikipedia.

额外的名为self的变量，那么什么是self呢？,我需要承认，我做了大家当碰到，不会的问题都会做的标准的事情。

麻省理工公开课 - 计算机科学及编程导论课程节选

On the other hand, there are some topics in Britannica's smaller collection of articles that I couldn't locate in Wikipedia.

WSJ: Encyclopaedia Britannica Now Fits Into an App

Siri also won't answer your philosophic questions, as GM doesn't want to display Wikipedia pages on the screen while you're driving.

ENGADGET: Chevy's Siri and TuneIn in-car apps hit 2013 Sonics and Sparks, we go hands-on (video)

Still, at any given point, Wikipedia visitors can't be sure of what they're getting.

CNN: Use with caution: The perils of Wikipedia