As to whether it is worthwhile
As to say sorry to her,I must consider whether it is worthwhile.
至于要对她道歉,我必需考虑一下这样做是不是值得的不错，可是想要的是填在后面的，As to whether it is worthwhile____there is a long-runing controversial debate.to invest another two million dollars in project.这个工程再投资二百万美金As to whether it is worthwhile_to invest another two million dollars in project___there is a long-runing controversial debate.