Learning has got to be active and experiential.

学习得是主动且来自经验的。

《柯林斯英汉双解大词典》

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"We're going to be active all over the United States; we have events across the country from Santa Monica to New York, to the heartland of the country."

VOA: special.2010.04.21

There is a huge difference between the energies in the outermost shell and the inner shells, which tells you that it's unlikely that any electrons except those in the outermost shell are going to be active.

最外层和最里层所具有的能量,有很大差异，而这告诉我们有一点是不太可能的,那就是除了最外层的电子,别的电子都是应该是活泼的。

麻省理工公开课 - 固态化学导论课程节选

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

" Lim himself promises: "I will continue to be active in the political scene.

CNN: Hishammuddin Tun Hussein

Each turn two event cards will be active, with one swapping out every turn.

FORBES: Duel of Champions: A Must-Try CCG

To be active in energy trading, Dynegy had to have enough electricity to sell.

FORBES: Power Broker