The horse kicked over a milk bucket.

那匹马踢翻了一个牛奶桶。

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The donated milk was probably to blame: recent laboratory research on rats has shown that rats briefly exposed to the substances aflatoxin tend to develop liver cancer when fed casein, a milk protein.

捐赠的牛奶可能是罪魁祸首：最近对老鼠的实验室研究表明，给老鼠喂食酪蛋白（一种牛奶蛋白）时，短暂接触过黄曲霉毒素物质的老鼠容易患肝癌。

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Mist was rising, and trees and shrubs began to disappear in a milk-white haze.

薄雾正在升起，树木和灌木丛开始消失在一片乳白色的雾霭之中。

《柯林斯英汉双解大词典》

She was a milkmaid. She had to get up very early every morning and go to the barn to milk the cow.

VOA: special.2010.11.20

One example of a way people have used this, is that they've taken the gene that ordinarily produces a milk protein.

利用这种方式的一个例子就是,他们把原本产羊奶蛋白的基因剔除

耶鲁公开课 - 生物医学工程探索课程节选

In this case the promoter, which is a sequence of DNA that is positioned right in front of the gene of interest, the promoter is the betagalactoglobulin promoter in this case, and betagalactoglobulin is a milk protein.

这里涉及到的启动子,也是一段DNA序列,它必须刚好位于目的基因序列前端,我们用到的是β-乳球蛋白启动子,β-乳球蛋白是乳汁中的一种蛋白

耶鲁公开课 - 生物医学工程探索课程节选

If Britain continues to undershoot its quota, there could be a milk producers' free-for-all.

BBC: Farmers milking their herds

One day a woman pulls up in front of the store driving a milk truck.

FORBES: The $50 billion stock market fee

Now sensors on a U.A.V. can detect a milk carton from sixty thousand feet.

NEWYORKER: Here��s Looking at You