Question

make it simple sentence- It has sold millions of copies world wide and been translated into more than 40 languages.
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Answer 1

It has sold millions of copies translating into more than 40 languages. 

Answer 2

Answer:

Besides millions of sold copies worldwide, the book also has been translated into more than 40 languages.

Here the sentence is written in simple sentence following the instruction.

The whole sentence is written with one verb and like the original compound sentence, the meaning of the sentence is kept unchanged along with the use of tense, etc.