It gose without sayig that we cannot be young forever 这句话的语法是什么？怎么讲解

It gose without sayig that we cannot be young forever 这句话的语法是什么？怎么讲解

It goes without sayig that we cannot be young forever. 毋容置疑，我们不可能永葆青春（不可能青春常驻，不可能青春常在）。

It goes without sayig that...不言而喻, 理所当然, 不消说, 不言自明, 不用说，毋庸置疑。It是主语，goes是谓语，without sayig...作状语；saying ...是动名词短语作介词without的宾语；that引导的是宾语从句，作动名词saying的宾语。如：
And it goes without saying that he hired the best chefs for his kitchen. 而厨房更是不用多说，他雇佣了最好的厨子来负责他的饮食。
Anne just told me she can't go with us. It goes without saying we're disappointed. 安娜刚告诉我不能和我们一起去了，不用说，我们都很失望。
First, it goes without saying that you must carefully prepare the materials you are going to play. 首先，不得不说的是你必须要仔细准备好你演奏所需要的一切材料。
It goes without saying that in order to speak good English, we must first of all learn good pronunciation. 不言而喻，为了讲好英语，首先必须学好发音。

It gose without saying 不用说大家也知道，毋庸讳言