I want to know the answer to the following question:
What did Marxist-Leninst add to Chinese philosophy?
All the background I'm provided with is that "There were attempts to incorporate democracy, republicanism, and industrialism into Chinese philosophy, notably by Sun Yat-Sen (Sūn yì xiān, in one Mandarin form of the name) at the beginning of the 20th century.". Is that enough to answer the question?
Answer: no