Inhibitor drugs have been developed to block two of the proteins, to slow progression of the disease after infection.

已经开发出抑制药物来阻断其中两种蛋白质，以减缓感染后疾病的进程。

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They say modern automobile windshields block two kinds of ultraviolet radiation.

他们说现代汽车的挡风玻璃可以阻挡两种超强紫外线。

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When they tested drugs that block two of these proteins in a mouse model of multiple sclerosis, the mice improved dramatically.

在多发性硬化小鼠模型的身上，他们用药物阻断这些蛋白质中的两种蛋白，病变小鼠得到显著改善。

youdao

They say modern automobile windshields block two kinds of ultraviolet radiation.

VOA: special.2010.07.06

So, here's the syllabus: two big blocks, first block general principles of chemistry, 1 and that's the same whether you take 3.091 or 5.111 or 5.112.

这就是教学大纲，两大块，第一部分是化学的通则，关于这点，我们的课程1,还有，5。111课程以及，5。112课程都是一样的。

麻省理工公开课 - 固态化学导论课程节选

If you go back down Powell, like a block or two,

你到鲍威尔街，离这里一、两个街区的路程，

充满乐趣 - SpeakingMax英语口语达人

The president has let it be known that he will step down if the conservatives block two bills, currently progressing laboriously through parliament, which seek to slash their powers.

ECONOMIST: Iranian justice

The Rangers captain went on to block two more shots in a frantic sequence without a stick, swiped a puck away with his hand, and land a pair of body checks before he was able to get off the ice.

WSJ: Kane, Jokinen score 2 each in Jets win over NYR

With coffee in hand, you can walk another block or two to Voodoo Doughnut (22 SW 3rd Ave.).

CNN: Portland bewitches travelers, rain or shine