If you have an active mind or imagination, you are always thinking of new things.
the tragedy of an active mind trapped by failing physical health.
因健康状况衰退而使活跃的思维无法施展的悲剧。
If someone is active in an organization, cause, or campaign, they do things for it rather than just giving it their support.
We should play an active role in politics, both at the national and local level.
我们应该在国家和地方层面的政治生活中扮演积极主动的角色。
He is an active member of his local synagogue.
他是本地犹太教会的一名积极分子。
Active is used to emphasize that someone is taking action in order to achieve something, rather than just hoping for it or achieving it in an indirect way.
Companies need to take active steps to increase exports.
那些公司需要采取积极的措施来增加出口。
If you say that a person or animal is active in a particular place or at a particular time, you mean that they are performing their usual activities or performing a particular activity.
Guerrilla groups are active in the province.
游击队组织在该省活动。
An active volcano has erupted recently or is expected to erupt soon.
molten lava from an active volcano.
一座活火山的熔岩。
An active substance has a chemical or biological effect on things.
The active ingredient in some of the mouthwashes was simply detergent.
某些漱口剂中的活性成分只是清洁剂而已。
In grammar, the active or the active voice means the forms of a verb which are used when the subject refers to a person or thing that does something. For example, in 'I saw her yesterday', the verb is in the active. Compare passive.