I have never seen such a person, it is good sinisterly!

我从没见过这种人，如此邪恶！

More sinisterly, there are the fossils that will not be found.

更悲剧的是，还有一些不会被发现的化石。

"But we don't know what the thing was," said Harry, looking at the sinisterly smooth water.

“但是我们并不知道那个东西是什么。”哈利说，眼睛望着平静而凶险的湖面。