这句话的意思是:很明显,. 主句是the position is that they live in same environments. 这是一个陈述句, they live in same environments.是个表语从句,做is的表语 也就是说obviously在这句话中修饰的是整句话,作整句话的状语,而不是position这个词 修饰整句话所以用副词了
obviously修释的不是:the position 所以不要断句成the position is obviously 而是:the position is obviously that they live in same environments. obviously 是个副词,修释后面整个句子。