If all goes well, 6, 000 navy blue, three-speed, sit-up-and-beg bikes with an inbuilt lighting system will be whizzing around the capital's streets next summer.

如果一切顺利，明年夏天将有6000辆有内置照明系统的深蓝色三速折叠式自行车呼啸在伦敦的大街小巷。

youdao

Bolt from the blue: Seen from the Hancock Tower, lighting strikes both the Willis Tower, right, and the Trump Tower in downtown Chicago as a severe storm rolls through the region last night.

突如其来：芝加哥市中心昨天遭遇一场暴风雨，从汉考克大厦看出去，闪电刚好同时击中威利斯大厦(右)和川普大厦。

youdao

The problem with office lighting is that it is not made up of 'blue' light, which is the wavelength of light you get from the sun and which controls your body clock.

办公室照明所存在的问题是，它不是由你从太阳得到的光的波长且能掌控你生物钟的‘蓝光’组成。

youdao

We didn't notice any of the telltale blue-tinge typical of AMOLED implementations, but the overtly blue lighting around us might have helped mask those shortcomings.

ENGADGET

But under indoor lighting, it's no longer blue.

NPR: Using Science to Rescue Art

But in spite of Arduino's near ubiquity these days, we'll admit that we were a bit taken aback when the familiar blue microcontroller made an appearance on a lab desk during our conversation with NASA "lighting guy, " Dr. Eirik Holbert.

ENGADGET