封建迷信的英文

1、叫魂怎么能治孩子的病！？这根本就是封建迷信。

How can one cure the sick by calling back his spirit? It's sheer feudalistic superstition.

2、科学是破除封建迷信，铲除邪教滋生蔓延的锐利武器。

Science is a kind of sharp weapon to destroy feudalistic superstition and eradicate evil religions.