I didn't know what else to say.

我不知道还能再说点什么。

《柯林斯英汉双解大词典》

I didn't know how much to bring.

我不知道该带多少。

《牛津词典》

I didn't know he was gay.

我不知道他是同性恋者。

《牛津词典》

"The eyes light up and click. It happens -- 'I didn't know you had this.'" Jenny Johnson is the executive director of marketing for the Online Computer Library Center.

VOA: special.2011.07.11

I didn't know what else to do, and I read one book that really influenced me.

我当时不知道还能干什么,所以就读了本对我影响深远书

耶鲁公开课 - 1871年后的法国课程节选

I chose English Literature because when I started off a university, I didn't know what it was I wanted to do.

我选英语文学是因为当我刚上大学的时候，我不知道自己到底想做什么。

为何选那门专业？ - SpeakingMax英语口语达人

"I was ashamed, too shy to tell him I didn't know how to pray, " Leuco wrote.

CNN: The 'cold call' Pope rings again

"I didn't know if it was lightning or what, but it was loud, " Mr. Gordon said.

WSJ: Tornado-Hit Oklahoma Struck Again; Mother and Baby Dead

' And of course I went cold, because I didn't know it was Fitzgerald's granddaughter.

BBC: Great Gatsby kicks off Cannes Film Festival