Translation of "Superstition" in Chinese

Such a ridiculous superstition no longer exists.

這種荒謬的迷信已不復存在了。

This superstition is still prevalent among them.

这样的迷信还在他们中间流传。

This superstition still lingers on among them.

这样的迷信还在他们中间流传。

He believes in the superstition that 13 is an unlucky number.

他很迷信的认为13是个不吉利的数字。