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since是一个用法极活跃的词,也是高考中的重点考查词汇,现就其用法归纳如下:一、用作介词,意思是“从……以来,自从”,常与完成时连用。
Since it is a very active word, it is also a key word for examination in the college entrance examination. Its usage is summarized as follows: First, it is used as a preposition, meaning “from... Since,” and is often used in conjunction with completion.