credulous ------ 易受骗的（形容词）

英文释义

(adjective) Describing someone who believes unproven statements readily, and therefore is easily fooled.

例句

When they first saw a steamship on their river, credulous local farmers sometimes believed that its engine was powered by a dragon inside.
当地农夫容易受骗，当他们第一次看到河上的蒸汽船时，他们总以为里面有条龙在驱动着船行进。