Mastering Russian will take from you 1100 hours or 44 weeks in a class according to FSI. Difficulty category for mastering it is evaluated 2 point.
Learning Wu might seem like a overwhelming thing to do. FSI has concluded that it takes 2200 hours or 88 weeks in a class to learn the language. The difficulty point is 3.
You will most likely find people, who speaks Russian in Russian Federation, Canada, China, Finland, Germany, Greece, India, Israel, and the U.S..
Number of native speakers is about 137,000,000.
Number of fluent speakers is about 166,000,000. The biggest country in which Russian is used as a native language is Russian Federation.
Native speakers of Wu are mostly from China and are about 80,000,000 people.
Wu are spoken fluently by 90,000,000 people.
The language is spoken in China and overseas communities with origins from Shanghai, Jiangsu and/or Zhejiang.
Russian came from East Slavic group of the Slavic branch of the Indo-European language family.
Sino-Tibetan languages is the origin of Wu language.