英语语法分析

It's wellknown that smoking is bad for our health.

众所周知，吸烟有害健康。

It is one of the wellknown scenic cities in China.

它是有名的中国的风景世界闻名的城市之一。

As is wellknown to all, the earth moves around the sun.

众所周知，地球围绕太阳转。