插入同位语,不能去掉
blluebird ,the car he was driving.had been specially built for him
蓝鸟,他开的那辆车,是为他特别订制的
the car he was driving放在句前可以the car he was driving放在句前可以 放在句前 其后要加，吗要加同位语好像不用加，号this is my father joe。blluebird ，the car he was driving。had been specially built for himthe car he was driving语法上算插入语，要加，其实有些情况是一样地，对表达没有影响，语法的说法经常有变化，咱们国家英语应试太讲语法常常会钻死胡同，对学语言没有好处，语言常常不能拿公式套的，只是入门的工具