Sorry, that had to come out. Go on.

抱歉 憋不住那种奸笑 你继续。

“Oooooooh! ” he said, with an evil cackle.

“嗬嗬嗬！”他咯咯地奸笑。

“That remains to be seen, ” said Mr. Malfoy with a nasty smile.

“我们等着瞧吧，”马尔福说，脸上泛起丝奸笑。

Stop smiling. It's not that clever.

{\an8}别奸笑了 不么有水平。

" You ain't going to get anything, " grinned Stuart.

" 你什么也别想吃，" 斯图尔奸笑道。"

" That'd wipe the smirk off old Draco's face, all right, " said Ron.

“没错，那，讨厌的德拉科就再也露不出那种奸笑了。”罗恩说。

And I must say this for him, he never smiles in that nasty-nice way when he's with her.

我也为他说句公道话，他和她在起的时候，可从不露出他那副奸笑。

" Oooooooh! " he said, with an evil cackle. " Ickle Firsties! What fun! " He swooped suddenly at them. They all ducked.

“嗬嗬嗬! ”他咯咯地奸笑，“原是讨厌的年级的小鬼头啊! 太好玩了! ” 　他突然朝他们猛扑过。他们下子惊呆了。

A toothless old man came ambling up to them, pointing, with a rather wicked grin, at an old rowing boat bobbing in the iron-grey water below them.

个牙齿掉光的老汉慢慢吞吞地朝他们走，脸上挂着不怀好意的奸笑，指着铁灰色海面上漂荡的只破旧的划艇。