besids 除.之外连词,一般用于句首.eg Exercise is beneficial to our health . Besids it can spirit us.
both 两者之间,和 both you and me
and连词you and me
as well 也 用于句尾 eg He likes apples .I like it as well.
as well as 用于句中
哥们,我打了半天了,给点鼓励吧.