1. I exercise every day.2. I work out every day to tone my muscles and lose weight.3. Walking can raise your aerobic fitness.4. If you want quick results then train your body with your personal trainer Ron Smith.
 work out fitnesswork out 就是健身; fitness 指健康, 常用在身體機能的健康
My sister is bad-tempered and would snap t anybody whenever she feels like it.