句子的 one 是針對(duì)前面的 time ,
即 one 代替 situation time ,
原句相等于
The second clause expands the temporal domain by relating a new situation time to the (situation time) that is already in the domain.
你也可以這樣說
The second clause expands the temporal domain by relating a new situation time to what is already in the domain.one 只替代 situation time ， 而不是a new situation time， 為什么？one 只替代 situation time ， 而不是a new situation time， 為什么？沒有為什么的，這應(yīng)該是明顯的：The second clause expands the temporal domain by relating a new situation time to the one (= situation time) that is already in the domain.如果我說The new book replaces the one that was lost很明顯，one 所指的就是 book ，而不是 new book 。這個(gè)句子的結(jié)構(gòu)和原句的結(jié)構(gòu)沒兩樣。