'I hate you,' she said nastily.

她咬牙切齿地说：“我恨你。”

She took the money and eyed me nastily.

她拿了钱，厌恶地盯着我。

The toad was staring rather nastily.

这是我在论坛上问的答案。

She laughed nastily.

她阴险的笑了。

He smiled nastily. He evidently knew something I didn't.

他发出狞笑，他显然知道一些我所不知道的事。