1
a social occasion
使用不定冠词a表示泛指。
This is a formal social occasion.
这是一个正式的社交场合。
社交场合
先理解核心含义，再看它在真实句子里的用法。
社交场合
a vaguely specified social event
This is a formal social occasion.
这是一个正式的社交场合。
相关中文义项：社交场合
a vaguely specified social event
I need to buy a new dress for the social occasion next Saturday.
我需要为下周六的社交场合买一条新裙子。
A wedding is always a formal social occasion, so please dress appropriately.
婚礼总是正式的社交场合，所以请穿着得体。
He feels nervous at any social occasion where he has to make small talk.
他在任何需要闲聊的社交场合都会感到紧张。
使用不定冠词a表示泛指。
This is a formal social occasion.
这是一个正式的社交场合。
介词at用于表示在某个场合中。
They met at a social occasion last year.
他们去年在一次社交场合相遇。
social occasion作为主语，后接动词。
The social occasion started at eight.
社交活动在八点开始。
Not this
She attended social occasion yesterday.
Use this
She attended a social occasion yesterday.
中文没有冠词，因此学习者常遗漏。英语中“social occasion”是可数名词，需要不定冠词“a”或“an”。
Not this
We met in a social occasion.
Use this
We met at a social occasion.
介词“in”用于较大范围或抽象场合，而“social occasion”是具体事件，应用介词“at”表示在某个场合。
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Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
Use social occasion naturally, then get feedback on meaning, tone, grammar, and phrasing.
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可数名词短语
Dictionary facts from ECDICT, WORDNET.