such

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such用作形容詞時,常放在不定冠詞之前, all, many, no, any, one, few, some等之后,但其前不可用many of, some of, all of等。通常用了such后,不可在同一句中再用which, who, where等詞。
such有時在后面的分句中,對前面的分句加以解釋,說明原因,兩個分句間用逗號隔開,后面分句比較強(qiáng)調(diào)。
such常與as連用,用于列舉事物,意為“例如,像…一樣”,其后所述數(shù)量也不可全部列出,偶爾可用etc.。such as在同一句中也可分開配合使用,此時as在從句中用作主語或賓語。

You use such to refer back to the thing or person that you have just mentioned, or a thing or person like the one that you have just mentioned. You use such as and such...as to introduce a reference to the person or thing that has just been mentioned.
Such is also a predeterminer.
Such is also a pronoun used before be. (be)
You use such...as or such as to link something or someone with a clause in which you give a description of the kind of thing or person that you mean.
You use such...as or such as to introduce one or more examples of the kind of thing or person that you have just mentioned.
You use such before noun groups to emphasize the extent of something or to emphasize that something is remarkable.
Such is also a predeterminer.
You use such...that or such that in order to emphasize the degree of something by mentioning the result or consequence of it.
Such is also a determiner.
You use such...that or such that in order to say what the result or consequence of something that you have just mentioned is.
Such is also a predeterminer.
You use such and such to refer to a thing or person when you do not want to be exact or precise.
You use as such with a negative to indicate that a word or expression is not a very accurate description of the actual situation.
You use as such after a noun to indicate that you are considering that thing on its own, separately from other things or factors.
no such thing&rarrsee thing