So skaters can be active all year round.

VOA: special.2010.01.29

And its opposition seems to me to be all together noble for know well men of Athens if I had long ago attempted to be politically active I would long ago have perished and I would benefited neither you nor myself. Now do not be vexed with me when I speak the truth.

而这样的违背在我看起来很高尚,因为可以彻底了解雅典人,如果很早之前,就试图活跃于政治的话,我早就没命了,也就无法造福你们或我自己,不要因为我说出真相而恼火。

耶鲁公开课 - 政治哲学导论课程节选

Best way to lose weight? Well, first of all, you must be active.

减肥最好的办法？嗯，首先，你必须积极主动。

要拥有好身材 - SpeakingMax英语口语达人

He says many don't even have the active ingredients in them. There is a tendency to treat all fevers as malaria in West Africa,and resistance to otherwise effective treatments, like cloroquine, has become a problem.

VOA: standard.2009.04.25

"What's very interesting about vitamin D is that it's involved all throughout the body, and it's involved on a local level, so you can have vitamin D active in the breasts, in the prostate,in the colon, and it's thought that the locally-acting vitamin D is helping to protect the body against these cancers, regulating how cells grow and how cells die."

VOA: standard.2010.05.28