occasion
noun [ C ] uk/əˈkeɪ.ʒən/ us/əˈkeɪ.ʒən/
B2 （尤指某事发生的）时刻，时候
a particular time, especially when something happens or has happened
We met on several occasions to discuss the issue. 我们几次会面讨论这个问题。
I've heard him be rude to her on a number of occasions. 我有好几次听到他对她说话很粗鲁。
I seem to remember that on that occasion he was with his wife. 我好像记得那一次他和她的妻子在一起。
B1 特殊场合；重大活动；盛会
a special or formal event
Sara's party was quite an occasion - there were over a hundred people there. 萨拉的聚会真是一次盛会——有一百多人参加。
At the wedding he sang a song specially written for the occasion. 婚礼上，他演唱了一首专门为这次婚礼创作的歌曲。
I have a suit but I only wear it on special occasions. 我有一套西服，不过我只在特殊的场合才穿。
The coronation of a new king is, of course, a historic occasion. 新国王的加冕典礼当然是一个历史性事件。
Congratulations on the occasion of your wedding anniversary. 在你们结婚纪念日之际谨致祝贺。
formal时机，机会；原因，理由
an opportunity or reason for doing something or for something to happen
The 200th anniversary of Mozart's death was the occasion for hundreds of special films, books and concerts. 为纪念莫扎特逝世200周年，出现了数以百计的专题电影、书籍及音乐会。
An occasion may arise when you can use your knowledge of French. 可能有机会让你用用法语。
The bride took/used the occasion to make a short speech. 新娘利用这个机会简短地讲了几句。
on occasionC2 有时;偶尔，间或
sometimes, but not often
He has, on occasion, made a small mistake. 他有时犯点小错误。
- More examples
- I'd like to thank everyone concerned for making the occasion run so smoothly.
- Is this an appropriate occasion to discuss finance?
- The funeral was a sombre occasion.
- As it was such a special occasion, she permitted herself a small glass of champagne.
- Her dress was too showy for such a formal occasion.
Idiom
have occasion to do somethingidiom formal 有必要做…，需要做…
to need to do something
Of course, as a teacher I had authority, but rarely did I have occasion to use it. 当然，作为老师我有权威，可是我很少用到它。
occasion
verb [ T ] formal uk/əˈkeɪ.ʒən/ us/əˈkeɪ.ʒən/
造成，引起；惹起
to cause something
Her refusal occasioned a lot of trouble. 她的拒绝引出许多麻烦。
[ + two objects ] The case occasioned the authorities a lot of worry/The authorities were occasioned a lot of worry by the case. 这个案子给当局惹来很多烦恼。