He surrounds himself with attractive, intelligent, or well-known people.

他混迹于有魅力、有学问或有名气的人当中。

He is well-known to the local police.

当地警察都知道他。

Hubbard was well known for his work in the field of drug rehabilitation.

哈伯德因在戒毒康复领域所做的工作而为人所熟知。

It may be a well-known fact, but I didn't know it.

这可能是人所共知的事实，但我却不知道。

It is well known that bamboo shoots are a panda's staple diet.

竹笋是熊猫的主要食物，这是人所共知的。