We might innocently hold fast to traditions ​ — information, opinions, beliefs, or customs handed down from one generation to the next — ​ that have, in fact, been contaminated by “a witch’s brew ” of false, misleading ideas and philosophies.
रसायनिक संदूषकों का फैलाने वाला ” बन सकता है । — जल प्रदूषण ।