a known fact 大家知道的事实
As a known memory 作为一个已知的记忆
He is a known troublemaker 他是个有名的捣蛋鬼
It's a known fact 这是个众所周知的事实
a known good switch 已知是好的交换机
a known criminal 一个出名的罪犯
a known quantity 已知量
A man is known 近朱者赤
And also get physically active, because exercise is a known brain booster.
而且还要积极锻炼身体,因为锻炼是一种已知的大脑助推器。
I can measure that, because I pull it by one centimeter and I find the acceleration it exerts on a known mass.
我可以测量它了,因为我把它拉到了一厘米,我发现它对一个已知质量施加的加速度。
Postmortem analysis showed the presence of an as yet unidentified virus, as well as evidence of a known bacterial toxin.
尸检分析显示存在一种尚未识别的病毒,以及一种已知细菌毒素的证据。
But in cases with a known cause the experts say salmonella is responsible for more than one-third of hospitalizations.
VOA: special.2011.01.11
Other medications and psychiatry, A known as A typical neuroleptics tend not to make the symptom things worse.
而其他一些药物,我们称之为药物,却不会加重病情。
So you know, that's not a class that MIT is... subject MIT is typically known for, but we have everything, so...
你知道,麻省理工学院没有什么特别出名的课程,但是我们的课程涵盖一切领域。所以……
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