warning line造句怎么写

Night, across the warning line of street lights, to extinguish the stars, the wind followed, shaking every poplar, making a tidal noise.

Through the iron gate steel network, people at the station saw a group of railway police running in two rows, forming a warning line from the platform to the exit.

Dr. Liang continued:'Our planet has been hovering around the edge of the warning line, and the global ecological consumption is becoming increasingly heavily indebted.

Moreover, our debt to GDP ratio is below the internationally recognized warning line.

The crude oil dependency has already broken through the 50% warning line in 2009, which gives a great pressure to our national energy security, the development of our economy and society.