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but的引导的从句问题Three epic events await us that have occurred many times before in our planet’s prehistory,but which we have yet to experience in historic time.后半句要怎么翻译,这是什么语法结构? but引导什么从句but引的从句叫什么状语从句? but that 是定语从句的引导词吗 where引导的从句 what引导的从句 when引导的从句 关于AS引导让步状语从句的问题, 关于AS引导让步状语从句的问题, but for引导虚拟语气的句子紧接着but for的部分是不是就是从句 引导表语从句的引导词 If引导的状语从句 that引导的宾语从句 疑问词引导的宾语从句 从句引导词的用法 when引导的状语从句 That引导的是什么从句? whom引导的定语从句 while引导的从句表示