Oh, Lord! I don '; t know. Not these two or three years, perhaps.

天哪！我也不知道。也可能两年三年见不着面。

youdao

We can easily imagine a world in which I don't have the last name Kagan or perhaps to switch it around, Shelly's not my name.

我们可以容易地想象一个世界里,我不姓卡根或者,反过来,我不叫薛立

耶鲁公开课 - 死亡课程节选

Or perhaps, you could be trying to explain that you don't know whether you can do something or not by a certain date.

又或者，你正在试图解释你没法确定你是否能在一个指定日期前做完某件事。

I don't know 课堂 - SpeakingMax英语口语达人

What should we say about Phase A, when the body is turned on and functioning,developing, but the brain has not yet gotten to the stage at which it's turned on, or perhaps it hasn't yet become, well,it's not doing person functioning.

我们对A阶段又该做何解释呢，当身体开始运行发展，但大脑还未到达开发的阶段，或者说这阶段尚未到来时，并没有人格功能的产生。

耶鲁公开课 - 死亡课程节选

Philosopher Alva Noe wrote in The New York Times last year that this branch of science has not produced any interesting or surprising insights, and that perhaps it won't because of the very nature of art itself -- how can anyone ever say definitively what it is?

CNN: What the brain draws from: Art and neuroscience