The paraphrased version : However, translators are supposed to make sure whether or not the text they are about to translate into another language can convey the same message. Another factor which is worth mentioning is their audience ...

It doesn't quite work using the noun phrases adequacy end and acceptability end, also using more suitable twice doesn't work. Let's try: Translators, hence, must know what is more suitable for their target audiences: the adequacy end or the acceptability end. The sentence works a lot better but it is still unclear as to what you mean by those noun phrases....maybe try to rephrase and comment below? Thanks, Tutor Zowee

did you mean "and" instead of "end"?

Thank you

Kai. It would sound better to say this: "Therefore, translators must know whether it is more appropriate for their target audience." You could put "hence" where you did but it sounds a bit strange. "However" is more commonly used than hence. It also sounds more natural/fluid to put it at the beginning of the sentence. You also put a few different words that mean roughly the same thing: adequate, suitable, and acceptable. I would just choose one and keep it simple (you'll see that I chose "appropriate" which I think is what you're going for).