He was walking along the coastline.

He cut the fuse to prevent the explosion.

This bridge is reinforced with steel wire.

He crossed the finish line with the last of his strength.

In geography, a tropic indicates a specific latitude on the earth.

In meteorology, an isotherm refers to a line on a map that indicates the same temperature.

Please turn on the power after checking the ground wire.

In this map, the longitude lines are clearly displayed.

I commute to work every day on the circle route.

These two lines are on the same extension.