He is only earning an income below the poverty line.

He was on the brink of starving to death due to a lack of food.

We need to calculate the asymptote of this function.

The doctor applied X-rays to my arm.

All of these points are on the same line.

This world line connects time and space.

He operated the spaceship using the mysterious ray.

He was carefully drawing the lines.

When you cross the Arctic Circle, the temperature drops sharply.

He cut the fuse to prevent the explosion.