格拉斯说，预防传染病应该是一种常年的关注。

Glass says infectious disease is a perennial concern.

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相比之下，贝尼特斯常年的烦躁不安似乎在球队令人愤怒的前后矛盾中找到了一种意想不到的表达。

Benitez's perennial fidgetiness, by contrast, seems to find an unintended expression in his team's infuriating inconsistency.

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日本经历了常年的衰退，如今才刚开始有点复苏的苗头，因此在即将到来的美国大选季节中，扮演经济恶棍的任务就落在了中国头上。

Japan is only starting to recover from its protracted recession, so China will be handed the role of economic villain in the coming U.S. election cycle.

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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