1.ahead of one's time
Definition: be more talented than others recognize
比其他人更有才华
He's ahead of his time. No one knows how important his discoveries are.
他的才华远超其他人。没人知道他的发现有多么重要。
She's always felt that she was ahead of her time, so she isn't disappointed.
她总觉得自己比其他人更有才华，所以她并不气馁。

2.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！

3.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。

4.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。

5.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。

6.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？

7.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！

8.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。

9.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。

10.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。

11.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。

12.live on borrowed time
Definition: live dangerously
朝不保夕地活着
He's living on borrowed time if he keeps that up!
如果他一直这样下去，就会朝不保夕。
She felt she was living on borrowed time because she smoked.
因为抽烟，她觉得自己的命是朝不保夕了。

13.make time for something or someone
Definition: create a period of time especially for a thing or person
腾出时间，尤其是为了某事或某人
I need to make some extra time for reading.
我需要腾出一些时间来阅读。
I'll make time for you on Saturday.
周六我会专门为你腾出一些时间。

14.out of time
Definition: not have any more time available
时间快用完了
I'm afraid we're out of time for today.
恐怕今天我们没有时间了。
You're out of time for that competition.
这场比赛，你已经没有时间了。

15.pressed for time
Definition: not have a lot of time to do something
时间紧迫
I'm pressed for time today. Hurry up!
今天我时间很紧迫。动作快点！
She couldn't see me because she was pressed for time.
由于时间紧迫，她无法见我了。

16.Time is money
Definition: Expression meaning that someone's time is important
表示某人的时间很重要的表达
Remember that time is money, let's hurry up.
记住，时间就是金钱，快点。
Time is money Tim. If you want to talk, it's going to cost you.
蒂姆，时间就是金钱。如果你想发言，就得付出成本。

17.when the time is ripe
Definition: when it is the proper time
当时机合适时
We'll get there when the time is ripe!
时机成熟时我们就去那！
Don't worry you'll be successful when the time is ripe.
别担心，等到时机成熟了，你就会成功的。