while, but, nevertheless, however, wh

whether...or 等;介于并列连词与从属连词之间的连词;介于并列连词与从属连词或介词之间的结构如 as well as , as much as, rather than , more than, no less than 等;此外还有些'半连接词',一些语法学家把它们称为连接副词,如 nevertheless, however, meanwhile, other