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

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。

troops on active service

现役部队

Please email us to be removed from our active list of blood donors.

假如你想把自己的名字从献血联系人名单中删去，请给我们发电子邮件。

He was brought before the tribunal for trial.

他被送到法庭受审.

You walk before and I will follow after.

你在前面走,我将在后面跟着.

Before trying to tackle his homework he read up the notes he had taken at the lecture.

他把课堂上记的笔记认真看过后才动手做作业.

She had no head for business, and it was not long before she went under.

她没有做生意的头脑, 不久就失败了.

Shall we clear up before we go out?

我们是不是在出去前把东西收拾好?

He debated heating up the pot first before his friends came.

他考虑在朋友们到来之前先把火锅烧热.

A vast expanse of golden crops lay before us.

我们眼前展现出一大片金黄色的庄稼.

I had a medical checkup before going abroad.

我在出国前作了一次体格检查.

We should prevent others cashing in before we've time to market the product.

我们应该防止别人在我们没有来得及在市场上销售这产品之前大捞一笔.

Moms are easy to please.

母亲是很容易感到欣慰的.