active

That's why more and more people are becoming active in various kinds of sports and exercises.
这就是为什么越来越多的人正积极地参加体育锻炼的原因。
来自：如何保持健康

You will be not only making an active choice to not do the old action you will also be making a choice to perform a better, alternative action in its place.
你将不仅仅要主动的不去选择旧的行动方式，你也会选择更好的表现，另一种行为。
来自：To break bad habits 如何改掉坏习惯

As is known to all, volunteers played an active role in Beijing Olympic Games.
众所周知，志愿者在北京奥运会中发挥着积极的作用。
来自：志愿者活动 Volunteer Activity

In the end of the class, he suggested us to be more active in the class and encouraged us to study hard.
在课堂的最后，他建议我们课堂上要更加活跃，并鼓励我们努力学习。
来自：一节英语课 An English Class

As we all know, children are active and they would like to go out to have fun.
我们都知道，孩子是很活泼的，他们想要出去外面玩耍。
来自：孩子们的沉重负担 Heavy Burden on Children

Instead, active measures should be taken to improve morals and ethics of the public.
相反，我们应该采取积极措施以提高公共道德。
来自：社会道德不应“过时” Social Morality Should Not Be Out of Date

We should take an active attitude toward old people.
我们应该对老人抱有积极的态度。
来自：照顾老人 Taking Good Care of Senior Citizens

Secondly, successful learners take an active attitude towards study.
其次，成功的学习者对待学习的态度都是很积极的。
来自：学会学习 Being a Successful Learner

John is an active boy and often helps Amy.
约翰是个活跃的男孩而且经常帮助艾米。
来自：艾米的家庭The Family of Amy

However, being active is of necessity and we will fall in love with the new life.
然而，积极是必须的，我们最后也会爱上新生活的。
来自：适应大学生活 Adapt College Life