“I solemnly swear that I am up to no good.”

― J.K. Rowling, Harry Potter and the Prisoner of Azkaban

谷歌翻译，仅供参考：

“我郑重地发誓，我做不到任何好事。”

―J.K.罗琳、哈利波特和阿兹卡班的囚犯

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