In Guangxi Zhuang Autonomous Region, the regional meteorological authorities have issued a blue alert for the typhoon and a blue warning for downpours.

在广西，自治区气象部门发布了台风蓝色预警和暴雨蓝色预警。 ?。

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In experiments, people exposed to blue light become less sleepy and more alert.

在实验中，身处于蓝光中的人的睡意总是较少，表现得更警觉。

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Hope to go out from the porthole, have alert: dy seen the sea water of last deep blue in the ground, and Japanese archipelago of probably outline.

从舷窗望出去，已经看见了地面上蔚蓝的海水，以及日本列岛的大概轮廓。

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Were I to pull an all-nighter, I could also switch Hue to blue to stay alert.

FORBES: The Best Product of 2012: The Philips Hue LED Lighting System

The Blue Jays said Happ was taken to Bayfront Medical Center, where he was alert and undergoing tests.

NPR: Jennings, Rays Shaken By Happ Getting Hit In Head

But Bratic was constantly aware and alert, knowing about the increasing problem of "green-on-blue" attacks in which Afghans have turned their guns on their U.S. trainers and fellow Afghan soldiers.

CNN: Single mom fought alongside combat troops in Afghanistan