The screenshot shown above in Figure 3 shows the user adding a new alert source to the application.

上面图3中所示的屏幕截图显示用户在向应用程序添加新警报源。

youdao

Birds that are literally half asleep—with one brain hemisphere alert and the other sleeping—control which side of the brain remains awake, according to a new study of sleeping ducks.

根据一项关于睡觉的鸭子的新研究来看，半睡半醒的鸟儿——大脑的一个半球处于警觉状态，另一个半球处于睡眠状态——控制着大脑的哪一边保持清醒。

youdao

Half of your brain stays alert and prepared for danger when you sleep in a new place, a study has revealed.

一项研究表明，当你在一个陌生的地方睡觉时，你的半边大脑会保持警觉并做好准备防范危险。

youdao

The alert was issued after the kidnapping and rescue of a New York Times reporter in Kunduz province.

VOA: standard.2009.09.10

But it has taken on new urgency,coming one day after the World Health Organization raised its global swine flu alert to Phase 4 on the six-point scale.

VOA: standard.2009.04.28

Following the 2007 rampage, the university created a new alert system that sends warnings through media including text messages, email and Twitter.

WSJ: Two Killed in Virginia Tech Shooting

Officials at the agency confirmed the recommendation to AP news agency but said no final decision on a new alert system had been made.

BBC: US may scrap colour-coded terror alerts

The new alert, issued late last week, urges Americans to defer nonessential travel in regions where drug-related violence has surged, including the border state of Tamaulipas and the central state of Michoacan.

CNN: U.S. broadens Mexico travel warning