it is not worthywhile to discuss the question again and again中的worthwhile为什么不能换成worthy?

不能,因为结构不一样.结构是IT IS (NOT) WORTHWHILE TO DO STH.===TO DO STH.IS (NOT) WORTHWHILE .WORTHWHILE直接做表语.但可以改写成以下句子：The question isn't worthy of being discussed againThe question i...但是也有it is worthy to do的结构啊~！好，你等一下。我马上就来。恩~先谢了~我要个详细的答案~没有it is worthy to do sth.的结构，只有sb is worthy to do sth. 的结构，翻译是某人有资格做某事，不解释为---值得，有价值。看来，你们老师搞错了。she is worthy to get our praise