It was originally developed by groups of Chinese and Russian scholars in the Soviet Union and used by Chinese immigrants there until the majority of them left the country .
It was originally developed by groups of Chinese and Russian scholars in the Soviet Union , and used by Chinese immigrants there until the majority left the country .
It was originally developed by groups of Chinese and Russian scholars in the Soviet Union , and used by Chinese immigrants there until the majority left the country .
Write a paraphrased version of the sentence: It was originally developed by groups of Chinese and Russian scholars in the Soviet Union and used by Chinese immigrants there until the majority of them left the country . Output: