as well as 可以有以下两种用法
①表示“和”,如：
My parents as well as my brothers went to the zoo last week.
我爸爸妈妈和我的哥哥们上周去动物园了.（这里的as well as 相当于 and）
②表示“和……一样好”
He can play the guitar as well as Mary
他的吉他能够弹得和玛丽一样好.