We need to understand In what the speaker is saying or not. Should ask again To make sure, because if we know the information is incorrect, or it may be that we misunderstood. And to tell you the wrong information to others.
We need to understand what the speaker says, or if you do not understand, ask again, to be sure, because if we know the invalid data, or it may cause misunderstanding And tell the information with others wrong
We need to understand. In what the speaker says, or if it does not understand should be asked again to make sure, because if we know the information is incorrect or obviously would make us misunderstanding and to say to the others wrong.