Unknown grouping
未知───unknown;分组───grouping
An unknown man has stolen all her money.───一个陌生人把她的钱偷光了.
The motive for the killing is unknown.───杀人动机不明。
Motherhood was for her a journey into the unknown.───做母亲当时对她来说是开始一次探险之旅.
Ignorance of people brings fear, fear of the unknown.───人们的无知会带来恐惧，对未知事物的恐惧。
He is an unknown quantity for his rivals.───对于对手们而言，他是个未知数。
She was then still comparatively unknown.───她那时候还不怎么出名.
My husband, for some unknown reason, suggested that I loved my birds more than him: as if I would.───我丈夫，莫名其妙地，暗示我爱鸟甚于爱他：仿佛我真如此似的。
Owen died an unknown provincial.───欧文死的时候是一个不为人知的外乡人。
Life is like a journey with an unknown destination.
The murderer's identity remains unknown .
A generation ago genetic codes were certainly unknown.
Wade not in unknown water.
They bowed in homage to the Unknown Soldiers.