"It is one of those traditions here in South Africa that I am not sure they are going to take away.

VOA: standard.2010.06.14

Do not think of a pink elephant for the next three seconds ? and I am sure no one thought of a pink elephant right?

在接下来的十秒钟里不要想粉色大象,我肯定没有人想一头粉色大象，是吗？

哈佛公开课 - 幸福课课程节选

I am not sure which one they actually say.

我不确定他们实际上说哪一个。

美式英语和英式英语 - SpeakingMax英语口语达人

"I am very disappointed because I do not know if we can have another one like him,"

VOA: standard.2009.06.28

I am not going to be the only depressed one around here.

我才不要作唯一的丧气鬼。

哈佛公开课 - 幸福课课程节选