The two poems we are looking at today fall into the category of medieval times.

我们今天要看的两首诗属于中世纪分类。

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It came furiously across the gulf, hitting Mexico's North-East coast as a category two hurricane.

它来势汹汹横扫墨西哥湾并升级为二级飓风袭击了墨西哥湾东北部沿岸。

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That same day, we learned that Rose was confirmed as a Category Two.

同样在这一天，我们还得知罗丝被定为第二类孤儿。

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The program provides a two-category drug system in an attempt to draw a clear line between therapeutic medications and banned substances in an attempt to keep horsemen from being punished for legal medications that remain in a horse's system before a race.

WSJ: Calif. horse owners want multi-state doping rules

This effectively equips the KONTROL S2 system with a third channel that opens up a wide range of additional creative performance techniques beyond the typical two-deck paradigm in its product category.

ENGADGET: Traktor Kontrol S2 digital DJ system shaves a few inches and bones off its big brother

This category makes up nearly two-thirds of all human infectious diseases, including rabies, Ebola and malaria.

ECONOMIST: Where and when will the next pandemic emerge?