They expand north to Archangel, so this gives them a port, but a frozen one.

他们向北扩张到阿尔汉格尔,有了一个港口,但常年冰冻

耶鲁公开课 - 欧洲文明课程节选

You add a special DNA polymerase called Taq polymerase And Taq polymerase is a polymerase that was identified, a DNA polymerase that was identified from an organism that lives in regions of the earth that are constantly at high temperature.

然后你加进一种特殊的,被称为Taq的DNA聚合酶,Taq聚合酶是已被鉴别出的聚合酶,这种DNA聚合酶是从一种生活在,地球上某些常年高温的区域中的,生物体内发现的

耶鲁公开课 - 生物医学工程探索课程节选