adj. 积极的,活跃的,有生气的;迅速的,敏捷的;有效的,起作用的;
n. [语法]主动语态;积极分子,活跃的人;
例句:
He is active, yet ill.
他虽然有病, 却很积极.
The scouts are active under the enemy's very noses.
侦察兵就在敌人眼皮底下活动.
She has taken an active part in all past contests.
她积极参加历次比赛.