Asked by rfvv
                1. Don't overeat at meal time.
2. Don't overeat at meal times.
3. Don't overeat at mealtime.
4. Don't overeat at mealtimes.
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Which one is commonly used? Can we use all the expressions?
            
        2. Don't overeat at meal times.
3. Don't overeat at mealtime.
4. Don't overeat at mealtimes.
----------------
Which one is commonly used? Can we use all the expressions?
Answers
                    Answered by
            Writeacher
            
    I'd use #3 only.
http://www.merriam-webster.com/dictionary/mealtime
    
http://www.merriam-webster.com/dictionary/mealtime
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