请问It is of vital importance...这里为什么会有of?

请问It is of vital importance...这里为什么会有of? someone still wonders if it is of vital importance of vital importance是什么意思 英语翻译The art of war is of vital importance to the state .It i of vital importance和important哪个正式 it is not of importance. communicate is of vital importance如何理解 be of 怎么用 Despitealmost universal _______ of the vital importance of w 1.Despite almost universal___of the vital importance of wome This matter is of vital importance to us.我想问一下这个句子里的of是什么用法 the meeting is (of great importance )请问为什么括号里的不能换成 great imp It is difficult to ________ the importance of the decision.