You should exercise more instead of watching TV at home.
你不要在家看电视,应多做点运动。
You should exercise more to keep energetic.
你应该多锻炼,保持精力充沛。
You should exercise more so as to keep energetic.
你应当多锻炼以保持精力充沛。
You should exercise more and eat healthy food.
你应该多运动,多吃健康的食物。
You should exercise more instead of only staying at home.
你应当多运动,而不要只是呆在家里。
You should exercise more and get in shape!
您应该多做运动来保持好身材!