For strong muscles, you need exercise.

要想有强壮的肌肉，你需要锻炼。

youdao

For strong muscles, you need exercise.

想肌肉强壮，你得锻炼。

youdao

Your muscles lack tone, you need exercise.

你的肌肉不结实，你需要锻炼。

youdao

So exactly how much exercise do you need to do to gain all of these great health effects?

VOA: special.2010.06.08

"That probably means you need to exercise even more, but the trainer has to understand how to work with that population and make exercise a safe experience, " she said.

CNN: The new face of fitness is getting older

Because you can get the exercise you need from walking your dog vigorously, running with your dog, doing some push-ups at home, or just playing.

WHITEHOUSE: President's Council on Fitness, Sports & Nutrition

And you all have to start making sure that you get the exercise that you need and you eat the right foods.

WHITEHOUSE: Remarks by the First Lady at a Let's Move! London Event