He has always been very keen on doing physical exercises.
他锻炼身体一向很积极。
One day while doing physical therapy, he fell to the floor and broke his arm.
有一天做理疗时，他摔在地上，折断了一条胳膊。
I have a better appetite after doing physical exercises.
体育锻炼后，我的胃口大开了。
I enjoy doing physical exercise, especially playing tennis.
我享受着体育运动，尤其是打网球。
I shall keep up doing physical exercise so as to live longer.
我要坚持体育锻炼，争取长寿。
I shall keep up doing physical exercise so as to live longer.
我要坚持体育锻炼，争取长寿。
应用推荐