heisatalossHeisatalosswhattodo.和heisatalossaswhattodo哪句正确?是不是两句都没问题?如果不加as,whattodo在这里语法上怎么解释?如果加AS,语法上又怎样解释?

Question

he is at a loss
He is at a loss what to do.和 he is at a loss as what to do 哪句正确?是不是两句都没问题?如果不加as,what to do 在这里语法上怎么解释?如果加AS,语法上又怎样解释?

Answer 1

这位小友,
at a loss what to do 中 what to do是at a loss 的补语
相同的表达法也可以是：
at a loss about what to do at a loss to know what to do
at a loss as to what to do at a loss for what to do
as to for about 在这里都是关于的意思.单独的一个as,不能这么用.