Meaning: The towel needed to be cleaned after being used many times.
Choice of Words: Washing implies cleaning the towel. Multiple uses suggest the towel was used several times.
Alternative Expressions
The towel was dirty and needed to be washed after being used many times.
Meaning: This means the same as the first sentence, but it uses different words to describe the towel and its condition.
Choice of Words:Dirty means not clean or having dirt or stains on it. Washed means to clean something with water or other liquids. Many means a large number of something. Times means the number of occasions something happened. When you put them together, "The towel was dirty and needed to be washed after being used many times" means that the towel was not clean and needed to be cleaned because it had been used a lot.
After being used over and over, the towel was no longer clean and needed to be washed.
Meaning: This means the same as the first two sentences, but it uses different words to describe the towel and its condition.
Choice of Words:Over means more than one time. And over means many times. No longer means not anymore. Clean means not dirty or having dirt or stains on it. Washed means to clean something with water or other liquids. When you put them together, "After being used over and over, the towel was no longer clean and needed to be washed" means that the towel was not clean anymore and needed to be cleaned because it had been used a lot.