It is a matter of concern to 可否给例子?

It is a matter of concern to 可否给例子? 想请教以下句式的用法(1) It is a matter of concern to ...(2) It has bee a matter of concern a matter of concern 什么意思? It is just a matter of time. 英语翻译To whom it may concern:My name is A,i am a friend of B a His politics ___a matter of great concern to his friends. a matter of grave concern 什么意思呢 英语翻译后面半句是“--has become a matter of public concern” The matter here is of grave concern to us all.这句话中的语法结构是怎样的? “It is not a matter of what you want,it's a matter of what y Destiny is not a matter of chance,it is a matter of choice