你需要少看电视,多锻炼用英语怎么说

you need to watch TV less but to exercise more.

You need to watch less TV and do more exercises

You need to watch TV less ,
practise more .

You need to watch less TV and practice more.

You need to watch less television and do more exercises
or
less television and more exercises are recomended .

Watching less TV but doing more exercises are needed for you.

You need to watch less TV, and exercise more

you need less tv BUT more exercises,说这种话时候不用加动词

You need to watch less TV but to do more exercise.