They discovered how to inactivate or knock out single genes in libratory animals.

他们发现如何在实验动物体内阻止单个基因的活性或敲除单个基因。

The scientists say the droplet itself becomes a little libratory that can do things like pump separate and mix.

科学说这种小液滴本身象一小型实验室，在那里可以处理象抽水泵、分离及混合此类的事情。

Then the nurse drew my blood. She used a needle to take small amount of blood from my arm. She sent it to a libratory for tests.

接着，护士给我抽血，她用一个针头从我的手臂上取了少量的血样，然后送到实验室做试验。