美国食品药品管理局（FDA）正寻找一种能快速追溯受污染食品的措施来阻止疾病爆发或缩短爆发周期。

The Food and Drug Administration is taking steps to prevent or shorten these outbreaks by developing the tools needed to rapidly track down foods that may be contaminated.

youdao

卡特拉似乎是半规律地喷发的，典型的周期是每次爆发之间相隔30到80年。

Katla seems to erupt on a semi-regular basis, with typical periods between eruptions of between 30 and 80 years.

youdao

那就是说，卡特拉正是在一个半正规的基础上喷发的，典型的周期是每次爆发之间相隔30到80年。

That said, Katla does seem to erupt on a semi-regular basis, with typical periods between eruptions of between 30 and 80 years.

youdao