吸烟的有害影响是一个众所周知的事实。

The harmful effects of smoking are a ___known fact.

她因其慈善工作而在全市闻名。

She is ___known throughout the city for her charitable work.

那位演员在主演了那部大片后变得国际知名。

The actor became internationally ___known after starring in that blockbuster film.