1·FDA director Stephen Sundlof okays the bacteria for eating, drinking, and applying directly to the skin.
FDA兽医中心主管同意这种细菌用于饮食，且允许直接接触皮肤。
2·You'll be able to hear your "ums" and "uhs" and "okays" and you can practice reducing them from your conversational speech.
你会听到自己的“嗯”、“呃”、和“好”等各种语气词，你可以通过练习减少在谈话中使用这些词。