What is the working principle of rural mouse-catching ground arrow?

Look at the traces on the soil and look for places where mice can move from several holes. Look at the traces on the soil and look for places where mice can move from several holes. Pull up the bow. Pull up the rope, seal the hole with soil, and confuse the mouse. After the bow and arrow are buried, wait for the mouse to move. As soon as the mouse touches the soil in the hole, it touches the bow and arrow, and then falls into the trap. When the mouse tries to struggle, the wound will expand. The bow and arrow are well buried. As long as it is hot, the mouse will start to move, which will trigger the mechanism and catch the mouse.