这点通过在实验室中用老鼠做试验得到证明。

This was demonstrated in a laboratory experiment with rats.

《柯林斯英汉双解大词典》

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。

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.

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圣地亚哥加利福尼亚大学的专家们，通过在实验室研究老鼠和人细胞培养得到这个发现。

Experts at the University of California at San Diego made the discovery by studying mice and human cells cultured in their laboratory.

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