Unfortunately, Da Vinci was a prankster who often amused himself by quietly gnawing at the hand that fed him.

不幸的是，达。芬奇喜欢恶作剧，他常默默地在递给他食物的手上咬一口以取乐。

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Born last December, the bear ignited a heated debate about hand-rearing after his mother rejected him and he was brought up and bottle-fed by Mr Doerflein.

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