Phrase

went bad

/ɡəu bæd/

verb

变质；变坏

went bad is the past of go bad (irregular).

to become spoiled or rotten, especially food; to stop being fresh or usable.

常用于食物，也可指质量变差。

1.
To spoil, rot, or otherwise become unusable due to age or storage conditions.
变质、腐烂或因时间或储存条件而无法使用。
2.
to cease to be reputable and instead become delinquent, criminal, immoral, corrupt or poorly behaved.
不再正派,而变得堕落、犯罪、不道德、腐败或行为不良。
3.
To become unsafe.
变得不安全。

变质、腐烂或因时间或储存条件而无法使用。；不再正派,而变得堕落、犯罪、不道德、腐败或行为不良。；变得不安全。；变质; 坏

In use

If you leave milk out of the fridge, it will go bad quickly.

如果你把牛奶放在冰箱外，它很快就会变质。

These apples went bad because we forgot to eat them.

这些苹果坏了，因为我们忘了吃。

The meat has gone bad, so please don't cook it.

肉已经变质了，所以请不要烹饪它。

常用于食物，表示变质、腐烂。

Milk goes bad if it's not refrigerated.

牛奶如果不冷藏就会变质。

用于人，指道德败坏或走向堕落。

He was a good kid, but he went bad after hanging out with the wrong crowd.

他本来是个好孩子，但跟坏人混在一起后变坏了。

The milk became bad yesterday.The milk went bad yesterday.

go wrong: 出差错；出问题 · “go bad”指食物等变质腐烂，或情况恶化；而“go wrong”指计划、机器等出现差错或问题，不用于腐烂变质。
go sour: 变酸；恶化 · “go bad”强调变质腐烂，适用于各种食物；“go sour”特指食物变酸（如牛奶、水果），或关系变糟，侧重酸味或酸涩变化。

该词属于 Oxford 核心词汇，值得优先掌握常见搭配和句型。

页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。

Dictionary facts from ECDICT, WIKTIONARY.