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credulous adj. 轻信的 (修饰人)
You must be credulous if she fooled you with that story.
连她那种话都能把你骗倒,你一定是太容易相信别人了。
incredulous 表示怀疑的, 不相信的
I am wholly incredulous of the truth of his story.我根本不相信他说的是真话。
credible: 可信的，可靠的 （修饰事物）
The story he told us is credible.
incredible adj.不可信的,难以置信的
Old superstitions seem incredible to educated people.
旧的迷信对于受过教育的人来说是不可思议的。
presume v. 假定 (根据过去的经验和感觉作出决断)
presume sb (to be) + n. / adj.
presume that.
The missing child was presumed (to be )dead. 人们认为那失踪的孩子肯定死了。
The house is empty, I presume that they are away on holiday.
