翟说：“对于进口奶粉，我们知道它的成分是什么。

“For imported milk powder, we know what's in there,” Zhai said.

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另外，来历不明的廉价进口药物中可能也存这种成分。

It may also be hidden in cheap imported medicines of dubious origin.

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2009年3月，FDA对来自重庆骏望的制药成分实施了进口禁令。

The FDA imposed an import ban on pharmaceutical ingredients from Chongqing Imperial in March 2009.

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