The true face of Lushan is lost to my sight, for it is right in this mountain that I reside.

不识庐山真面目，只缘身在此山中。

《新英汉大辞典》

A man who knows love, can not see the true face of love.

一个懂了爱情的人，看不见爱人的真面目。

youdao

Have not seen the true face of love, you will not know its unique.

没见过爱情的真面目，就不会懂得它的独一性。

youdao

It was true. The hand on her face had been her link to life.

VOA: special.2009.09.26

Is it really true that bodies don't face a duplication problem?

肉体就不用面临复制问题么？

耶鲁公开课 - 死亡课程节选

who watch the news and see the pictures but when they're able to put a true voice and face to what's going on down there and I think said McPhee.

VOA: standard.2010.06.19

"Jim was always trying to show the true face of whatever he photographed, " Davis said.

CNN: STORY HIGHLIGHTS

The glamour had slipped as Titania was about to strike, and the woman had seen her true face.

NEWYORKER: A Tiny Feast

It's like if Batman was a real human being and you could go out anywhere, and they never, ever revealed their true face to the public.

NPR: The Masked Men of Mexican Movies