英语 谁帮我分析下这句。

看句子的结构先把定状补去掉，就清楚得多了。 who’ve been told for so long by so many to be cynical and fearful and doubtful about what we can achieve 是修饰those的定语，on the arc of history 是修饰put their hands的状语，once more toward the hope of a better day是修饰 bend it的状语。所以整个句子的结构就是It’s the answer that led those to put their hands and bend it.

就是拆分 ，像what,how,those，后面的部分，是补充what,how,those的，

例如：who’ve been told for so long by so many 是修饰those的

提取主干就是 led those to be......

It’s the answer /that led those /who’ve been told for so long by so many /to be cynical and fearful and doubtful about /what we can achieve /to put their hands on the arc of history and bend it once more toward the hope of a better day.