The army gets up early and runs for exercise. He first ran to the park in the southwest, then to the library in the east, and finally returned to his home in the northwest.

The way to identify the direction in life: write about the southeast, northwest, north and south, put the word "south" on it when facing south, and observe what direction is behind it. Facing the west, put the word "west" on it and observe what direction is behind, left and right. Direction identification methods on plan or map: up north, down south, left west and right east.