FDA的发言人道格•阿贝斯菲尔德（Doug Arbesfeld）说，尚无证据显示有来自中国的含毒牙膏进入了美国境内，对所有中国牙膏进行紧急取样检测只是一项预防措施。

There's no evidence that any tainted toothpaste has entered the U. S. , and the 'top-priority' sampling of all shipments was initiated as a precaution, FDA spokesman Doug Arbesfeld said.

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