as is know to everybody,the moon travels round the earth once every month

as is know to everybody肯定是错的啊。

众所周知，每月月亮绕地球运动一周。

这个地方绕地球一周一个月这个事实肯定是被大家所知道，所以前边知道应该是过去分词表被动。

as is known to everybody, the moon travels round the earth once every month.

另外，众所周知这句话，英文里习惯是说as is know to all.

我看的懂