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1·We judged they was studying up some kind of worse deviltry than ever.

我们断定，他们这是正在策划什么比往常更加恶毒的主意。

2·The creations of a small coterie of malicious hackers who invent toxic software for the sheer deviltry of it.

计算机病毒系一小撮存心不良的黑客所为，这些人纯属为了搞恶作剧而编造有毒软件。