1.ahead of time

Definition: before the agreed upon time

比约定的时间提前

I think we'll get there ahead of time.

我想我们会提前到达那里。

Wow, we're ahead of time today. Let's keep it up!

哇喔，今天我们提前到了。坚持下去吧!

2.at a set time

Definition: at an agreed upon time

在规定的时间

We'll meet at the set time.

我们就按照规定的时间见面。

Let's make sure that we meet at a set time.

让我们确保在规定的时间见面吧。

3.at the appointed time

Definition: at an agreed upon time

在规定的时间

We'll meet at the appointed time and place.

我们就按约定的时间和地点见面。

Did you get into the doctor's office at the appointed time?

你是在约定的时间去见医生的吗?

4.to bide one's time

Definition: to wait

等待

I'm biding my time until he arrives.

我一直等到他来。

She decided to bide her time in a shop.

她决定在商店里等着。

5.have the time of one's life

Definition: have a fantastic experience

度过愉快的经历

My daughter had the time of her life in Disneyland.

我女儿在迪士尼乐园玩得很开心。

Believe me. You're going to have the time of your life.

相信我。你会有一段愉快的经历的。

6.keep time

Definition: keep the beat in music

打拍子

Can you keep time while we practice this piece?

你能在我们联系这一段时给我们打拍子吗?

He kept time with his foot.

他用脚打着拍子。

7.from time to time

Definition: occasionally

偶尔

I like playing golf from time to time.

我偶尔会打打高尔夫。

Petra speaks with Tom from time to time.

佩特拉不时地跟汤姆说话。

8.behind the times

Definition: not fashionable, not up on current fashions

过时，不符合现在潮流的

My Dad is so behind the times!

我爸真是太老土了!

She dresses like it was the 70s she's behind the times!

她一副70年代的打扮，太过时了!

9.at all times

Definition: always

一直

Make sure to keep your seat belts on at all times.

你要确保一直系好安全带。

Students need to pay attention at all times.

学生们需要一直注意。

10.all in good time

Definition: within a reasonable amount of time

在适当的时候

I'll get to you all in good time. Please be patient.

我会在适当的时候去见你。请耐心点。

Her professor kept on saying that she'd be successful, but that it would be all in good time.

她的教授一直坚持说她会成功的，但这应该是在一个适当的时候。