Natasha looked with wondering eyes at Sonya. Evidently it was the first time that question had presented itself to her, and she did not know how to answer it.

娜塔莎用她那惊奇的目光望着索尼娅，看来，这个问题头一次在她自己头脑中浮现出来，她不知道应该怎样回答。

youdao

Then my teacher asked me to answer her question, I just did not know how to say, my mind got blank, I felt so embarrassed, I was very afraid of being laughed at.

然后我的老师叫我回答问题，我说不出来，头脑一片空白，我感到很尴尬，很害怕被取笑。

youdao

She look at me queerly and do not seem to know how to answer.

她以奇异的目光望著我，似乎不知道如何回答。

youdao

There was something else that was worrying Oive, and she did not know just how to begin to talk about it At last,she spoke out, not sure what Nate's answer would be.

VOA: special.2010.01.09

How valuable will it be to you to know whether or not the candidate you vote for can give a straight answer?

FORBES: The #1 Reason To Watch The Presidential Debates