类别3：表“并列补充”also/too/as well 也；同样；而且both...and... ……和……either...or... 要么……要么……neither...nor... 既不……也不……not only...but also... 不但……而且……besides 除此之外moreover 另外；此外in addition/additionally 加之；除……之外by the way 顺便；顺便说what's more 更重要的是；而且；此外what's worse 更糟的是 as well as... 也；又；和；及