a matter of grave concern 什么意思呢如上

a matter of grave concern 什么意思呢如上 as a matter of matter The matter here is of grave concern to us all.这句话中的语法结构是怎样的?可不可以改成：It is the matter of grave concern to us all. a matter of concern a matter of another life beyond grave?another life beyond the grave a feeling for thevalue of human life has become deeper as a matter of fact. as a matter of fact As a matter of fact It is a matter of. as a matter of fact as a matter of routine a matter of important对吗 a matter/waste/collection of not a matter of RT～ plant it on a grave to remove the grave There is a classic saying:marriage is the grave of love. Is consciousness a matter of lifetime only?