1. 名詞
   場合
   時刻, 時候
   重大活動
   盛會, 盛典
   /以上複數為"occasions"/
   可為不可數或單數可數名詞:
   起因, 原因
   近因
   理由
   需要
   

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   同義字詞
   moment,time
   break,chance,opening,opportunity,room,shot
   antecedent,causality,causation,cause,reason
   affair,circumstance,episode,event,happening,incident,occurrence,thing
   

2. 動詞
   及物動詞:
   引起...(事)
   惹起...(事)
   造成...(事)
   occasion ...(a: 人) ...(b: 煩惱等):
   給(a)惹來(b)
   給(a)造成(b)
   /此動詞過去式與過去分詞為"occasioned"/
   /現在分詞為"occasioning"/
   /第三者單數現在式為"occasions"/
   

   同義字詞
   beget,breed,bring,bring about,bring on,catalyze,cause,create,do,draw on,effect,effectuate,engender,generate,induce,invoke,make,produce,prompt,result (in),spawn,translate (into),work,yield
   

3. 副詞
   on occasion/
   on occasions:
   有時
   偶爾
   間或
   on the occasion of ...(特別場合等):
   在...的時刻
   在...的時候
   for the occasion:
   對這場合
   

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4. 形容詞
   (事物)suitable for the occasion/
   (事物)appropriate for the occasion/
   (事物)suitable to the occasion/
   (事物)appropriate to the occasion:
   應景的
   很應景的
   切合時宜的
   

5. 動詞片語連結
   rise to the occasion:
   臨危不亂
   迎難而上
   應付自如
   應付局面
   迎接挑戰
   (人)have occasion to ...(動詞...):
   有必要做...
   需要做...
   

例句

1. On this occasion , Birkbeck won.
2. They have on occasion also succeeded.
3. That's the excitement of the occasion .
4. She made a special dress for the occasion .
5. This approach has saved my bacon on occasion .
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