你也知道啊?
I know you might not agree, and I also know this is not a universal list, or even - in some cases - a list of practical requests.
我知道你可能不认同,并且我也知道这不会是一个全面的清单,甚至-在某些方面-是一个实用需求清单。
But I also know this: If people had made that decision 50 years ago, or 100 years ago, or 200 years ago, we wouldn't be here tonight.
但是我知道:如果人们在50年前、100年前或200年前决定这么做的话,就没有我们的今天。
But I also know that this prize reflects the kind of world that those men and women, and all Americans, want to build."
VOA: special.2009.10.10
Within the visible range of what we can see, you also want to know this relative order that's pretty easy -- most of us have memorized that in kindergarten, so that should be fine.
在可见光的范围内,你们要知道它们排列的,相对顺序,这非常简单,你们在幼儿园的时候。
Conversely, if I knew the velocity of this object, I also know what time it is, provided I knew the initial velocity.
反过来,如果我知道了这个物体的速度,我也同样可以知道时间,只要初速度是已知的
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