一般的这样像您所说的连词词叫作:合成连接词,即本身包含了名词还有一个关系词, 如 whoever=anyone who ,what=sth that 前者和后者的区别就是,前者可以表达更抽象的事物,后者是一个确定的名词, 如 Something that is difficult to sovle is difficulty与 what is difficult to sovle is difficulty.的区别中 something that 和 what的区别在于,前者就是一类事物 后者则是更具抽象意义上的东西,翻译的时候可以为: 难解决的(.)就是困难.