She had no appreciation of the difficulties we were facing.

她了解所面临的困。

We don't know all the circumstances, so it would be pointless to speculate.

了解所有的情况, 妄加推测是没有意义的。

He gave us a warning against placing confidence in people we did not know.

他告诫, 要轻信了解的人。

They were not blinded to the defects of Western society.

他并非了解西社会的缺陷。

One unversed in such matters can have no notion of the many and tragic things that can happen to a chicken.

了解养鸡的人象一只鸡会遭遇多少灾。

Show an interest in other people, but don't discuss anything that you wouldn't talk about with your grandmother or religious officiant -- especially with a coworker you don't know extremely well.

对别人表示感兴趣，但是要谈论那些你会和祖母或宗教主祭谈论的话题，特别是和一位你了解并深的同事。