It happened in the act, not before or after.

這件事不早不晚就發生在行動過程當中。

A criminal was caught in the act.

罪犯在作案時被抓獲。

He denies all guilt, even though he was caught in the act.

他否認所有罪行,即便他是被當場抓住的。

In the act of taking a bath,I heard a knock at the door.

我正要洗澡時,聽到了敲門聲。

I was in the act of shooting him when I suddenly recognized him.

我正要向他開槍時,突然認出了他。

She stopped in the act of turning and stared at me.

她轉身時突然停下來盯著我。

I caught him in the act of reading my private letters.

他正偷看我的私人信件時,被我撞見了。

I photographed them in the act of stealing my car.

他們正在偷我的車時被我拍了照片。

The farmer caught the boys in the act of stealing of his apples.

在孩子們偷蘋果時,這位農夫抓住了他們。

He was caught in the act of breaking into the house.

他在破門而入的時候被抓住了。

I acted against your advice.

我違背了你的勸告。

They acted against the discipline of their school.

他們違反了學校的紀律。

A copper wire acts as a conductor.

銅絲可用作導體。

I'll act as an interpreter for American tourists.

我將為美國旅遊者當譯員。

Sometimes they acted as referees.

有時他們擔任裁判員。

He acted as secretary to the board.

他充任委員會的秘書。

A trained dog can act as a guide to a blind person.

經過訓練的狗能當導盲犬。

Classroom testing most certainly acts as a stimulus to study.

課堂測驗當然會對學習起到促進作用。

The drugs act as a brake on the spread of the disease.

這些藥物有制止這種疾病擴散的效果。

This kind of tea acts as an aid to digestion.

這種茶可以幫助消化。

You speak Greek—will you act as interpreter?

你會說希臘語,那你能當翻譯嗎？

A solicitor acts for his clients.

律師代表他的當事人。

Lawyers acting for the family will issue a statement this morning.

代表這家人的律師今天早上會發表一份聲明。

His lawyer acted for him; he did not appear in court himself.

他的律師代表他,他自己沒出庭。

He asked me to act for him at the meeting.

他叫我代表他出席會議。

Please act for me during my absence.

我不在時,請充當我的全權代表。

Will you please act for me in the matter?

請你替我處理這件事情好嗎?

He acts kindly to old people and children.

他對老年人和小孩很友善。

She was wondering how to act to her superior.

她想知道怎樣對待她的上司。

Indeed, she acted like a mother to us.

她待我真像媽媽一樣。

He always acted up to the principle he set for himself.

他總是遵循自己所定的原則。

I hope that he will act up to his promise.

我希望他會履行他的諾言。

You must act up to the contract between us.

你們必須履行我們之間的這個合同。

What you say means very little unless you act up to it.

你要是說而不做,你的話就沒有多大意思了。

The boy often acts up with his mother when she keeps him from smoking.

遇到他媽媽禁止他吸煙時,那個男孩經常對媽媽粗暴無禮。

The young herdsman briskly mounted a horse that was inclined to act up with an unaccustomed rider.

年輕牧民輕快地躍上一匹慣於對生人使性子的馬。

The lad is fond of acting up with him.

男孩愛跟他搗蛋。