Joe took an active part in the struggle.

His pulse is low, but his heart is still active.

他脉搏很弱, 但心脏还跳着.

The Navy furloughed him and never called him back to active duty.

海军准他休假,再也没有将他召回来服役.

Such a cheerful and active member will inject new life into the club.

这样一个快乐而活跃的成员会给俱乐部增添活力.

A minority of children are sexually active before they are in their teens.

少数孩子十几岁前已有性行为.

Most of the students in the class took an active part in extracurricular.

班上绝大部分学生积极参加课外活动.

She is very active for an octogenarian.

她已经是八旬老人了,还很精神.

This sentence is in the active voice.

本句子用的是主动语态.

How many kids in this school are sexually active?

这个学校有多少年轻学生性行为活跃？

The active suspension system gives the car a very smooth ride.

这个主动悬架系统使汽车行驶起来非常平稳。

He was to remain active in the association, latterly as vice president, for the rest of his life.

他此后一生都活跃于协会中，后来还当上了副会长。

By the time I get home, I'm too tired to do anything active.

我到家时累得无法动弹。

The active ingredient in some of the mouthwashes was simply detergent.

某些漱口剂中的有效成分只不过是洗涤剂而已。

In many societies young men regard themselves as highly active, the agents of change, shapers of the world.

在许多社会中，年轻人将自己看成是高度活跃的分子，是变革的推动者和世界的塑造者。

He was very active in Freemasonry.

他是共济会中非常活跃的分子。

Etna is Europe's most active volcano.

埃特纳山是欧洲最活跃的火山。

He was an active bisexual.

他是活跃的双性恋者。

His daughter was very active and noisy in the mornings.

他的女儿一到上午就很好动，吵吵闹闹的。

He is active on Tyler's behalf.

他为泰勒积极奔忙。

An active volcano may erupt at any time.

活火山会随时喷发。

She is still very active, in spite of her advancing years.

她尽管年事渐高，仍然十分活跃。