英语句法疑问,原句是“More and more people realize that they are ultima

英语句法疑问,
原句是“More and more people realize that they are ultimately those who must decide their own fate”,翻译过来是“越来越多的人认识到,最终他们必须自己决定自己的命运.”
本人英语不好,想请问,为什么这句话中间要有“those who must”,去掉了不是意思更明显吗?还有,感觉加上去句子看起来好别扭,能不能详细解释一下这样的句法或者是一些类似的例子,

明确：你提问的部分是一个典型的定语从句,而修饰的名词又作的是表语
分析：
主语+系动词(am/is/are/seem.)+表语
名词+定语从句
ultimately在句子中做的是时间状语,可以去掉不影响语法结构
that they are ultimately those who must decide their own fate是做的realize的宾语从句
those是做的表语
who must decide their own fate做的是修饰those的定语从句

再问： 能举一个相似的句子吗...语法好差...这么看总是有点不懂...谢谢
再答： I am truly the one who helped you in the forest. 翻译：我确实是那个在树林里帮你的人 分析：I 是主语 am 是系动词 the one 是表语，who helped you in the forest.是定语从句，修饰the one.