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;
🗣️ 情景例句
Were you raised in a bam?
你是牲口棚里长大的吗?
Walls have ears.
隔墙有耳。
Soon the hobby leads to travel, perhaps to a meeting in another town, possibly a trip abroad in search of a rare specimen, for collectors are not confined to any one country.