By doing so (such), we may discover the benefits of simply watching a sunset.
这句话中,so为什么不能换为such?such也可作代词,比如:We were second-class citizens and they treated us as such.
当do用作替代动词时,常用的结构为do so, do it .不说do such. 不可照搬as such, as such是习语,你不能说as so, as it. 学习英语要从阅读中熟悉各种习惯用法,不要想当然。不要随意去改动原句。
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