其中一个例子是2004年发现荷兰牛奶中二恶英含量的增加，追踪到了动物饲料生产中所使用的一种粘土存在问题。

One example is the detection of increased dioxin levels in milk in 2004 in the Netherlands, traced to a clay used in the production of the animal feed.

youdao

另外，Mark，我还有一个问题要问，我是否需要每天将我们公司Strings的产能报告发E-mail给你，以便你追踪和了解Strings在PSD生产的状况？

Meanwhile, Mark, i have another question on do I need to send the outputs of strings per day to you for you following up on the state of strings production in PSD, just as Lisa did before?

youdao