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- The WHO remained at pandemic alert level 5, meaning a pandemic is imminent. 世界卫生组织发布的流行预警仍为5级，意味着大范围的流行很可能即将发生。
- Currently the alert level stands at five out of six meaning a pandemic is imminent. 现在的警戒水平处于六个级别中的第五级，这意味着流行性疾病即将发生。
- Earlier the organization said it was going to raise the alert level of the epidemic to its top Phase six pandemic. 早些时候，世卫组织声称将提高流行病警报级别至其最高的六级全球流行级别。
- The WHO was convening an expert panel to consider whether to raise the pandemic alert level or issue travel advisories. 世卫组织正在召开一个专家小组，以考虑是否提高流行病警戒级别或问题旅行忠告。
- The alert level "is now at a higher class" than in 2002, says Air Force Brig.Gen.Jung Jae-bu, commander of the 20th Fighter Wing. “目前的警戒水平”高于2002年，第20战斗机飞行中队指挥官，空军准将郑在卜（音）表示。
- Officials at the monitoring centre then decide whether to raise the alert level based on information acquired by the EDM equipment. 官员就能根据观测站用该设备测量的资料，来决定是否要升高警戒层级。
- Scientists in the Philippines have raised the alert level for the volatile volcanoMount Mayon, amid fears of an imminent eruption. 菲律宾科学家对即将爆发的活火山马荣火山提高了警戒程度。
- WHO's decision to raise the pandemic alert level to Phase 6 is a reflection of the spread of the virus, not the severity of illness caused by the virus. 意思翻译：世界卫生组织提升警戒级别到6，是为了反映病毒扩散的的广泛性，并不是因为此种病毒所带来的病情严重程度。
- Swine flu has become the world's first official pandemic in 41 years after the World Health Organisation raised the alert level on the H1N1 virus from phase 5 to 6, the highest on the scale. 世界卫生组织宣布将甲型H1N1流感病毒的警戒级别由5级提升至最高级别6级，至此，猪流感已成为41年来世界上第一个正式的全球大流行病。
- The WHO, which has raised its global alert level to the the 3rd third highest, says the outbreak is not containable and efforts should concentrate on mitigating the effects of the virus. 世界卫生组织已经将提高全球境界级别到第三极，并且表示说此次爆发不可遏制并且应该将努力集中在减缓该病毒的致病效果上。
- The WHO's pandemic alert level is currently at to phase 3.The organization said the level could be raised to phase 4 if the virus shows sustained ability to pass from human to human. 那谁是全国流行的警觉水平现在是在逐步运行 3.;组织说了水平可能被升起逐步运行 4 如果病毒表演维持了能力从人类到人类通过。
- Similarly, tests with multiple stages can be classified into the three OOT alert levels, but this task is much more challenging and less straightforward. 同样，多阶段检测也可分为三种OOT警戒水平，但是这项任务太具有挑战性，不是那么简单。
- One should not run about aimlessly during an alert. 空袭警报期间不可到处乱跑。
- US Raises Terror Alert Level for All Flights 美国提高所有航班恐怖威胁警戒级别
- Esophageal Doppler measured cardiac indices, and an auditory vigilance test measured alertness level after extubation. 以食道都卜勒超音波测量心率，及以听觉警告性测试测量拔除呼吸器后的灵敏度。
- She is always on the alert for some new calamity. 她总是保持警觉以防某种新的灾难。
- Keep on the alert; we're due for an inspection. 提防着点，轮到检查我们了。
- Scientists on Wednesday raised the alert level for Anak Krakatoa and Tangkuban Prahu -- which regularly spew gas and rumble -- from "normal" to "warning," the middle of three alert levels. 上周三，科学家们将喀拉喀托火山和唐库班珀拉胡火山的警戒度由“正常”提高到“警告”，三级警戒的中间等级，因为这两座火山近来定期喷出火山灰，并发出隆隆的声音。
- Be sure to be watchful or alert. 必须留神，千万要提防。
