a. offensive or even (of persons) malicious
s. exasperatingly difficult to handle or circumvent
a. 污秽的, 下流的, 险恶的
1. The weather was really nasty yesterday.
昨天的天气真糟糕。
2. She made a nasty comment about his outfit.
她对他的穿着做了一个恶意的评论。
3. Don't be nasty to your classmates; be kind instead.
不要对你的同学恶言相向，要友善一些。