"If you present it to them in a way that engages their imagination, that engages their playfulness, that engages their willingness, they come alive."
VOA: special.2010.06.03
That's important, too, because you need to be able to tell if the virus is present in the human population.
这一点也非常重要,因为你要能够分辨出,人群中是否有人感染了天花病毒
and I had to present myself and say what I would do if I were a tour guide.
我必须自我陈述,然后阐述如果我当上了导游我会做什么。
If one or more of the warning signs are present, a doctor should examine you immediately.
VOA: special.2010.07.06
Particularly if you compare them with hair cells that are present in the mammalian and the human and mouse cochlea.
尤其是与哺乳动物如人和老鼠的,耳蜗中的毛细胞相比。
Political analysts say if that happens, the two present candidates for the prime minister's post are likely to step down and make way for others who might be able to build a consensus.
VOA: standard.2010.07.29
If I present the same thing in another context or background or environment, then you react very differently.
如果我用另一种表述方式来叙述同样的事件,或者更换背景及环境,你的反应会完全不同。
"Do we really want government bureaucrats rather than doctors dictating how we prevent and treat something like breast cancer?" President Obama has assured Americans that they can stay with their present health care providers, if they choose.
VOA: standard.2009.12.06
In any event, this is some interesting research opportunity, so again, no obligation, you don't have to do this, I won't even know if you are or not, but I just thought I would present these in the case you might find them interesting things to do.
不管怎样,这都是些不错的研究机会,不过不是强制的,我甚至都不知道你们参加与否,不过我还是会把这些放在这里,这样大家可能会找到一些有趣的事情去做
They're not actually present in the real world of Milton's hell, or if it's a pagan god who's mentioned, Milton will tell us that the pagan god was just an early manifestation of one of the fallen angels.
事实上他们没有在弥尔顿笔下的地狱中出现,或者作为异教的神被提及,弥尔顿将告诉我们那些异教的神只是堕落天使中,一名天使早期的表象。
If the messenger RNA for protein is not present in a cell, then that can't be translated, obviously, and the protein can't be made.
如果细胞中没有,用来合成蛋白质的mRNA,那就不能进行翻译,很明显,蛋白质也不能被合成
And you'll use "If I were" to talk about yourself in the present in relationship to the past.
你可以用“If I were”来比较现在的你和过去的你。
If I present things in one frame, then you would react one way.
如果我用一种表述方式来叙述,你就会做出相应的反应。
Generally, if it pays c dollars for every period, the present value is c/r.
推广开来,如果在每段时期内支付c美元,那么它的现值就是c/r
You could use PCR to do that because if you amplify a gene in PCR, that gene had to be present from the beginning.
你可以用PCR技术来鉴定,因为如果你能用PCR扩增某一段基因,说明它从一开始就肯定是存在的
If you looked at the antibodies that were present in the blood, for example, you would find that most of those antibodies are IgM during this initial period of antibody concentration rise.
如果你现在观察血液中存在的抗体,举个例子,在初次免疫的抗体浓度上升阶段,你将会发现大部分的抗体都是IgM
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