A Short Translation, Welcome any Suggestions

With the development of China's booming economy, there is an increasing number of people choosing to  learn ing Mandarin , which . This has made Chinese one of the most favourite (or most popular or most sort after) languages (because you said "one of the" so you must use plural) to learn worldwide. In recent years, Chinese universities has also dramatically improved its world rankings. Due to these remarkable progress (or advancements), it is no wonder that China has become one of the most popular (or "sort after") countries for international students to study（Could you give me a better expression for this sentence）.

In 2015, nearly four-hundred thousands international students came in great numbers ## to our country for further study (or ... to our country to pursue higher education). What they learn now not only includes not only (you are not wrong but smoother to put "not only" in front) Mandarin and Chinese culture, but also science and technology and engineering. In the global education al market, America and England are still the main force players ### in educational rankings (delete this because you already said "education market") , but China is quickly coming up to them catching up  (or ... quickly closing the gap. or quickly gaining ground).

Very well written. Some of my changes are not because you are wrong but just suggestions to make it smoother.

## Because you already gave the estimated number of 400,000, so do not repeat  "in great numbers" again. If you don't have the estimated figure then you can say, "In 2015, international students came in great numbers to our country" 

### When talking about a business market, you can call the participants or companies as "players". Example : In the desktop computer market, the main players are still Microsoft and Apple. 

Hope this helps.