Food can easily go sour in warm weather.

天热时食物很容易变馊。

youdao

If milk is not kept in a cool place, it will go sour.

牛奶如不存放在阴凉处，很快就会变坏的。

youdao

In some ways, it is a strange time for multinationals to go sour on China.

从某些方面来说，此时美国跨国公司对中国感到失望让人觉得奇怪。

youdao

"If there's one lesson that we've learned, it's that unfettered market where people are taking huge risks and expecting taxpayers to bail them out when things go sour is simply not acceptable."

VOA: special.2010.04.16

Monte and Nomura entered into a perfectly legal contract which just happened to go sour for Monte.

FORBES: This Is One Way To Kill The European Banking System: Monte Dei Paschi And Nomura

"The job market looks a lot better here, so if things do go sour, there are more opportunities, " he said.

WSJ: Consumers Step Up Spending

Perhaps the judgment that would come raining down upon my head should the relationship go sour is what always kept me at bay.

FORBES: How I Stopped Being Scared Of Relationships At Work