n.迷信；沒有根據(jù)的理論

It's a common superstition that black cats are unlucky. 認(rèn)為黑貓不吉利，這是一種普遍的迷信思想。

He holds that ignorance leads to superstition. 他認(rèn)為無知會(huì)導(dǎo)致迷信。

That superstition was prevalent among them. 那種迷信在他們之間廣為流傳。

The superstition still lingers on among them. 那種迷信仍然殘留在他們的腦海中。