I want to look at a slightly higher level of magnification now and think about different kinds of cellular communication.
我现在想讲一些较高水平的放大机制,并思考不同种类的细胞通讯
So we can understand down to a very fine level now because of machines that we've built.
现在我们能在非常微观的水平上进行研究,这得益于我们设计出的种种机械
.. So for most people it was prohibitively-- We're talking in today's prices, roughly speaking.
所以这会使大多数人望而却步-,我以现在的物价水平做参照,大概而已。
Now if you've gone to the doctor, often they'll measure your triaglyceride level as a measure of how healthy your liver is and how healthy your diet is.
现在如果你去看医生,他们通常会测你的甘油三酯水平,以此作为你的肝健康和饮食健康的指标
So, if you bought a newspaper it would be only two sheets because it was so expensive-- not all the thick paper that we have today-- and it would cost something like $10 or $20 in today's prices.
你要是在当时买报纸的话,恐怕只有两页纸,因为纸实在是太贵了-,而且我们现在用的那种厚纸很少见-,按照今天的物价水平,大概需要10至20美元。
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