BEHAVIOUR 行为, nasty behaviour or remarks are extremely unkind and unpleasant

不友善的，不好的，恶毒的:

a nasty temper

坏脾气

the nasty things that were being written about her

正在写的关于她不好的事情

There's a nasty streak in her character.

她性格中有令人讨厌的一面。

Drivers often have a nasty habit of driving too close to cyclists.

驾驶员常有一个不好的习惯，就是车开得离骑自行车的人太近。

Don't be so nasty to your mum (=do not treat her unkindly).

别对你妈妈这么凶。

When Harry refused, Don turned nasty and went for him with both fists.

哈里拒绝后，唐翻了脸，挥动双拳向哈里扑去。

PERSON 人, someone who is nasty behaves in an unkind and unpleasant way

不友好的，恶意的，令人不愉快的:

I went to school with him – he was nasty then and he's nasty now.

我和他一起上过学 — 他那时很讨厌，现在还是很讨厌。

You're a nasty little brute!

你这个讨厌的小家伙！

EXPERIENCE / SITUATION 经历/状况, a nasty experience, feeling, or situation is unpleasant

令人不快的，糟糕的:

It gave me a nasty shock.

这使我非常震惊。

I had a nasty feeling that a tragedy was going to happen.

我有一种非常糟的感觉，一场悲剧将要发生。

He had a nasty accident while riding in the forest.

他在森林中骑马时出了严重的事故。

When you feel you've been cheated, it always leaves a nasty taste in the mouth (=makes you feel upset or angry afterwards) .

你发现受骗时，总会有一种懊恼的感觉。

The weather turned nasty towards the evening.

傍晚时分天气变坏了。

SIGHT / SMELL ETC 景象/气味等, having a bad appearance, smell, taste etc

〔外表〕丑陋的; 〔气味等〕难闻的:

What's that nasty smell?

那是什么难闻的气味？

a market stall selling cheap and nasty watches

卖廉价而难看的手表的集市摊位

INJURY / ILLNESS 伤/病, severe or very painful

严重的:

a nasty cut

严重的割伤

He was carried off the field with a nasty injury.

他受了重伤被抬下场。

SUBSTANCE 物质, a nasty substance is dangerous

危险的:

nasty chemicals

危险的化学品

a nasty piece of work, [BrE] someone who is dishonest, violent, or likely to cause trouble

不诚实的人; 凶暴的人; 易惹麻烦的人