1
be bad for {sth}
Smoking is bad for your health.
吸烟对你的健康有害。
坏的；不好的；糟糕的
worst — superlative of bad
先理解核心含义，再看它在真实句子里的用法。
坏的；不好的；糟糕的
not good; unpleasant; negative
Smoking is bad for your health.
吸烟对你的健康有害。
质量低劣的。
Of low quality.
不准确的；错误的
Inaccurate; incorrect
具有不良或负面特征
having undesirable or negative qualities
不利的；消极的；不好的。
Unfavorable; negative; not good.
The weather was bad, so we stayed indoors.
天气很糟糕，所以我们待在室内。
AI contextual example
He has a bad habit of biting his nails.
他有咬指甲的坏习惯。
AI contextual example
This milk smells bad; it has gone sour.
这牛奶闻起来坏了，已经发酸了。
AI contextual example
a bad report card
一张差的成绩单
WordNet
Smoking is bad for your health.
吸烟对你的健康有害。
She is bad at swimming.
她不擅长游泳。
也可用'It is bad of sb to do sth'结构。
It is bad to tell lies.
说谎是不好的。
Not this
He sings bad.
Use this
He sings badly.
在英语中，修饰动词要用副词。‘Bad’是形容词，而‘badly’是副词。‘Sings’是动词，所以需要用‘badly’来修饰。
Not this
I feel badly about the mistake.
Use this
I feel bad about the mistake.
在联系动词（如feel）后，使用形容词而非副词。‘Bad’是形容词，描述状态；‘badly’是副词，修饰动作。这里表示情感，应用形容词‘bad’。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
坏主意
It's a bad idea to go out in this storm.
在这种暴风雨中出去是个坏主意。
坏运气
First my car broke down, then I lost my keys—what bad luck!
先是我的车坏了，然后我又丢了钥匙——真倒霉！
坏天气
The flight was canceled due to bad weather.
由于天气恶劣，航班取消了。
坏习惯
Biting your nails is a bad habit.
咬指甲是个坏习惯。
坏心情
Don't talk to him when he's in a bad mood.
他心情不好的时候别跟他说话。
臭味
There's a bad smell coming from the garbage.
垃圾堆里传来一股臭味。
越来越糟，每况愈下
After losing his job, his financial situation went from bad to worse.
失业后，他的财务状况越来越糟。
不错，还行
The movie was not bad, actually quite enjoyable.
这部电影还不错，实际上相当有趣。
真遗憾，太可惜
It's too bad you can't come to the party.
你不能来参加聚会真是太遗憾了。
我很坏，我很坏。
Michael Jackson's song 'Bad' popularized the phrase.
迈克尔·杰克逊的歌曲《Bad》使这句话流行起来。
坏到骨子里。
George Thorogood's song 'Bad to the Bone' is a classic rock anthem.
乔治·索罗古德的歌曲《Bad to the Bone》是一首经典摇滚歌曲。
Use worst naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
bad 谐音 '败的'，意为坏的。
语域：mixed 常见场景：日常对话、书面语、正式评估 通常可用于多种场合，从非正式到正式均可，但需注意语气和搭配，有时在正式文体中会选用更具体的词。
These words all share the -ad spelling and rhyme with /bæd/: had, mad, sad, dad, glad, pad. Words like 'bead', 'bid', or 'bade' look similar but have different vowel sounds.
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.