Red, yellow, and green lights represent the state of each supply level.

红色，黄色和绿色亮点表示每个供应点的不同状态。

youdao

Blues and purples are created by lighter gases such as hydrogen and helium, while low-level nitrogen can add red fringes to the bottoms of green auroral curtains.

蓝色和紫色是来自较轻的气体比如氢和氦，而更低点的氮气能在绿色极光的底部添上红色的边缘。

youdao

The surrounding basin is that of Red River, but because Devils lake's own basin is closed, the lake must reach a sufficient water level before the water travels elsewhere.

周围的属于红河的流域，但是由于魔鬼湖流域是封闭的内流区，必须使湖面水位达到足够的高度，水才能流到其他地方。

youdao

First up is the switchback level, the red earth tracks zigzagging steeply through the clifftops.

BBC: The perfect trip: Southwest USA

"The Phillies are now seen as a national power on the level of the Red Sox, " says Burke.

FORBES: Sports Business

Another is the way that, somewhat arbitrarily, 450 parts per million has been turned into a red line for the level of atmospheric carbon dioxide.

ECONOMIST: Climate change