Quoting or emphasizing words or phrases. The typography rules are however a bit different. The main usage of quotation marks is the same in both languages:
REAL China city (which they don't want you know) r/UrbanHell
Mark Elliot Zuckerberg (English: Mark Elliot Zuckerberg) was born on May 14, 1984 in White Plains, New York, USA. He is the founder and CEO of the social networking site Facebook and is known as the "Second Gates". Zack.
