“But the Ministry never knew that here used to be three unregistered Animagi running around Hogwarts.”

“但是魔法部从来不知道霍格沃茨有三名未经登记的阿尼马格斯。”

He never knew I had led three fellow students into becoming Animagi illegally.

他一直不知道我领着三个同学非法学成了阿尼马吉。

" Right again, Hermione! " he said. " But the Ministry never knew that here used to be three unregistered Animagi running around Hogwarts."

“你又对了，赫敏! ”他说，“但是魔法部从来不知道霍格沃茨有三名未经登记的阿尼马格斯。”

Animagi do not retain the power of human speech while in their animal form, although they keep all their human thinking and reasoning powers.

阿尼马格斯变为动物形态后，就失去了会说人类语言的功能，尽管他们还保留着人类的思维和推理能力。

This might be poetic licence, but I think it more likely that Beedle had only heard about Animagi, and never met one, for this is the only liberty that he takes with magical laws in the story.

这恐怕是属于诗人的大胆狂想了，但是我认为更有可能的是彼豆只听说过阿尼马格斯，并没有见过，因为故事中他只在这一点上歪曲了魔法规律。