occasion
noun /əˈkeɪʒn/
  /əˈkeɪʒn/
Idioms - [countable] a particular time when something happens某次;…的时候 -  on an occasion on this/that occasion这次;那次 
- I've met him on several occasions.我曾见过他几次。 
- They have been seen together on two separate occasions.他们有两次被人看见在一起。 
- On one occasion, she called me in the middle of the night.有一次她深更半夜打电话给我。 
- Only on rare occasions do I go out socially.只有在极少数情况下,我才会出去社交。 
-  occasion when… I can remember very few occasions when he had to cancel because of ill health.我记得他因为健康不佳而被迫取消的情况绝无仅有。 
- He used the occasion to announce further tax cuts.他利用这个机会宣布再次减税。 
- I have stated on numerous occasions what options are open.我已经在许多场合说过有哪些选择。 
- Harry has mentioned this on many previous occasions.哈利在以前的许多场合都提到过这一点。 
 - I have stayed there on a number of occasions.我曾在那儿住过多次。 
- It was the first of many such occasions.这是第一次,这种情况后来发生过很多次。 
- On this occasion, as it happens, the engine started immediately.这一次碰巧引擎一下子就启动了。 
- On this particular occasion, Joe wasn't there.在这个特殊场合,乔却不在。 
- They came to visit us on the odd occasion, but only when they had nothing better to do.他们偶尔会来访,但那只是在他们无事可做的时候。 
- I will overlook your lateness, on this occasion.在这种场合,我会原谅你的迟到。 
 Collocations Dictionaryadjective- countless
- many
- multiple
- …
 - recall
- remember
 - on an/the occasion
- on occasion
- on occasions
- …
 - a number of occasions
- on one occasion
- on that occasion
- …
 
-  on an occasion on this/that occasion
- [countable] a special event, ceremony or celebration特别的事情(或仪式、庆典) - a great/memorable/happy/momentous occasion伟大/难忘/快乐/重大的时刻 
- Turn every meal into a special occasion.要把每一顿饭都弄得特别一些。 
- They marked the occasion (= celebrated it) with an open-air concert.他们举办了露天音乐会来庆祝。 
- Their wedding turned out to be quite an occasion.他们的婚礼办得相当隆重。 
- We expect you to dress for the occasion.我们希望你能为这个场合穿上衣服。 
-  on the occasion of something He was presented with the watch on the occasion of his retirement.他在退休仪式上获赠这块手表。 
- Every good wish to them on the occasion of their 40th anniversary.在他们结婚40周年之际,向他们致以良好的祝愿。 
 Wordfinder- anniversary
- birthday
- celebrate
- commemorate
- festivity
- jubilee
- occasion
- parade
- party
- reception
 - I only wear my silk dress on special occasions.我只在特殊场合穿真丝连衣裙。 
- Medals are usually worn only on ceremonial occasions.勋章通常只在仪式上佩戴。 
- The Queen's coach is only used for state occasions.女王的马车只有国事盛典上才使用。 
- We sell cards and notepaper for all occasions.我们出售各种用途的卡片和便笺。 
- It was certainly a memorable occasion!这当然是一个值得纪念的时刻! 
 Collocations Dictionaryadjective- auspicious
- big
- great
- …
 - celebrate
- mark
- rise to
- …
 - call for something
 - on occasion
- occasion of
 - for all occasions
- for every occasion
- a sense of occasion
- …
 
- a great/memorable/happy/momentous occasion
- [singular] a suitable time for something适当的机会;时机 -  occasion for doing something It should have been an occasion for rejoicing, but she could not feel any real joy.原本应该是高兴的时刻,她却丝毫未感到快乐。 
- These workshops provide an occasion for talking about art.这些研讨会提供了一个讨论艺术的机会。 
-  occasion for something This is not a time for specifics, but an occasion for vision.现在不是讨论细节的时候,而是展望未来的时候。 
- Festivals were occasions for great celebration.节日是盛大庆祝的场合。 
- I’ll speak to him about it if the occasion arises (= if I get a chance).有机会的话,我要跟他谈谈这件事。 
 Collocations Dictionaryadjective- right
- suitable
 - get
- have
 - arise
 - occasion for
 - be an occasion for something
- become an occasion for something
- have occasion to do something
- …
 
-  occasion for doing something It should have been an occasion for rejoicing, but she could not feel any real joy.
- [uncountable, singular] (formal) a reason or cause理由;原因 -  occasion to do something I've had no occasion to visit him recently.我最近无缘去拜访他。 
- She doesn’t have much occasion to speak French in her new job.她在新工作中没什么机会说法语。 
-  occasion of something Her death was the occasion of mass riots.她的逝世引发了大规模的骚乱。 
-  occasion for something Art here is an occasion for education and entertainment.这里的艺术是教育和娱乐的场所。 
- I'm willing to go to court over this if the occasion arises (= if it becomes necessary).如果必要的话,我愿意就此出庭。 
 Topics Change, cause and effectc2- I bought the camera last year, but never had the occasion to use it.这台相机是我去年买的,可是一直没有机会使用。 
- Last year we had occasion to visit relatives in Cornwall.去年我们有机会得以拜访康沃尔的亲戚。 
 Collocations Dictionaryadjective- right
- suitable
 - get
- have
 - arise
 - occasion for
 - be an occasion for something
- become an occasion for something
- have occasion to do something
- …
 
-  occasion to do something I've had no occasion to visit him recently.
词源late Middle English: from Latin occasio(n-) ‘juncture, reason’, from occidere ‘go down, set’, from ob- ‘towards’ + cadere ‘to fall’.
Idioms 
on occasion(s) 
- sometimes but not often偶尔;偶然;有时 - He has been known on occasion to lose his temper.大家都知道他有时会发脾气。 
 
- He has been known on occasion to lose his temper.
a sense of occasion 
- a feeling or understanding that an event is important or special隆重的(或特别的)气氛 - Candles on the table gave the evening a sense of occasion.桌上点了一些蜡烛,使得那个晚上有一种特别的气氛。 
 
- Candles on the table gave the evening a sense of occasion.