It is good for our health to take exercise.

　　進行體育鍛煉有益于我們的健康。

　　We should take exercise to build up resistance to disease.

　　我們應該堅持鍛煉以增強對疾病的抵抗力。

　　I know I should take exercise, but I never do.

　　我知道我應該進行體育鍛煉，但我從來沒這樣做過。

　　If you are planning to do exercise regularly, or you're doing it now, then listen up!

　　如果你計劃定期鍛煉,或者你現(xiàn)在正在鍛煉,那就聽好了！

　　How often do you exercise?

　　你多長時間鍛煉一次？

　　It would be a good idea if you could do this exercise twice or three times on separate days.

　　如果你能將此練習隔幾天做上兩三次就好了。