opportunity/chance/occasion/time.导航词义：机会

1. opportunity:n. 机会，时机.指能够做某事或容易做成某事的机会，作此义解时常可与 chance 换用；也可指得到工作或提升的机会。

They had no opportunity/chance to escape.

他们没有逃跑的机会。

He has got the opportunity/chance to visit Paris.

他获得了访问巴黎的机会。

There were more opportunities for graduates last year.

对去年的毕业生而言，就业机会要多一些。

2. chance:n. 机会，机遇.指做想做之事的适当时机，侧重指偶然或意外的机会。

It was his only chance of escape.

这是他唯一的逃脱机会。

I never miss a chance to play football.

我从不错过任何踢足球的机会。

He will be a candidate in next week's election, and this is his big chance.

他将是下周竞选的候选人，这是他成功的大好机会。

3. occasion:n. 时机，机会.指合适的机会或有利的时机，通常用单数，常后接介词 for。

This is an occasion for the whole country to celebrate.

这是个举国欢庆的时刻。

It was the occasion for expressing friendship by the two presidents.

这是两位总统表达友谊的时机。

4. time:n. （可利用的）时间.指能够用来做某事的一段时间，多用于口语。

Now is the right time for us to move to New York.

现在正是我们搬到纽约去的好时机。

I'll visit her if I have time.

如果有时间我会去拜访她。

This is no time to switch jobs.

现在不是换工作的时候。

全部

1·It was a wasted opportunity.

这白白浪费了一次机会。《牛津词典》

2·Here is your opportunity.

你的机会来了。《牛津词典》

3·It was too good an opportunity to miss.

这个机会太好了，不容错过。《柯林斯英汉双解大词典》

4·I grasped the opportunity to work abroad.

我毫不犹豫地抓住了去国外工作的机会。《牛津词典》

5·We talk glibly of equality of opportunity.

我们大谈特谈机会的均等。《柯林斯英汉双解大词典》

6·We're missing out on a tremendous opportunity.

我们正在错失一个绝佳的机会。《柯林斯英汉双解大词典》

7·This will be a marvellous opportunity for her.

这对她可是千载难逢的机会呀。《牛津词典》

8·America is the land of freedom and opportunity.

美国是一个拥有自由与机遇的国度。《牛津词典》

9·There was no opportunity for further discussion.

没有机会进行深入讨论了。《牛津词典》

10·I had an opportunity to go to New York and study.

我曾有过一个去纽约学习的机会。《柯林斯英汉双解大词典》

机会

1·Here is your opportunity.

你的机会来了。《牛津词典》

2·It was a wasted opportunity.

这白白浪费了一次机会。《牛津词典》

3·It was too good an opportunity to miss.

这个机会太好了，不容错过。《柯林斯英汉双解大词典》

4·I grasped the opportunity to work abroad.

我毫不犹豫地抓住了去国外工作的机会。《牛津词典》

5·We talk glibly of equality of opportunity.

我们大谈特谈机会的均等。《柯林斯英汉双解大词典》

机遇

1·America is the land of freedom and opportunity.

美国是一个拥有自由与机遇的国度。《牛津词典》

2·The thread running through many of these proposals was the theme of individual power and opportunity.

贯穿众多提案的主线，是个人权力与机遇的主题。《柯林斯英汉双解大词典》

3·The opportunity came early one morning.

一天清晨机遇来了。《新英汉大辞典》

4·After all, if the one-time land of opportunity can't be fixed, what does that say for the rest of America?

毕竟，要是这片曾经的机遇之地都不能保持，其他城市又怎么可能做到呢？

5·America's education system has become less a ladder of opportunity than a structure to transmit inequality from one generation to the next.

美国的教育体制不再是通往机遇的阶梯，而是一个将不平等代代相传的体系。

时机

1·He says there's a golden opportunity for peace which must be seized.

他说必须抓住这个谋求和平的黄金时机。《柯林斯英汉双解大词典》

2·He was content to bide his time patiently, waiting for the opportunity to approach her.

他情愿耐心守候，以等到接近她的时机。《柯林斯英汉双解大词典》

3·You may not have time to read books, but if you're commuting and doing nothing, you're wasting a good opportunity to get friendly with the interesting world of books.

你平时可能挤不出时间看书，但是如果你在通勤路上什么也不干，那么你就浪费了和图书世界来个亲密接触的大好时机。

4·I feel that the opportunity during the next year of getting them all to speak English is golden.

我已经预感到了明年将会是让他们全部说英语的最好时机。

5·Early diagnosis provides the best opportunity for effective medical support.

早期诊断为有效医疗支持提供了最佳时机。

契机

1·This is a historic opportunity for our institutions and the peoples of the world.

对于我们两个机构和全世界人民，这是一个历史性的契机。

2·That is an opportunity that is worth effort.

这是一个值得努力把握的契机。

3·Besides the resulting unemployment, some researchers fear this would waste an opportunity to use the new data to reveal the true workings of the sources and sinks of gases.

除了所导致的失业问题，一些研究者还担心这样会丧失一个利用新数据揭示资源实际价值以及温室气体增减变化的契机。

4·We will work with countries, especially in Africa, and partner institutions, to seize an opportunity from the higher demand for food.

我们将与世界各国，尤其是非洲各国，与合作机构共同努力，抓住食品需求上升的契机。

5·Beijing and London will host 2008 and 2012 Olympics respectively, which provides a good opportunity for enhanced exchanges and cooperation between both sides.

北京和伦敦将分别举办2008年和2012年奥运会，这为双方加强交流与合作提供了良好契机。

(1)seize the opportunity抓住机遇，抓住机会

(1)rare opportunity稀有机会，难得机会

(1)equal opportunity机会均等

(1)opportunity cost机会成本

(1)business opportunity商业机会

(1)take the opportunity利用机会，抓住机会