使某人走下坡路

put sb. under an obligation put the key under the door hit the skids put sb. in the corner put sb. off the scent put the doctor on sb. put sb. to the blush put the wind up sb. put sb. on the shake put sb. in the wrong put the screw on sb. put the skids under sb put the skids on sb put sb under hack put sb under examination put sb. under an obligation put sb's conduct under examination put sb on the peg put the claw on sb put the heat on sb put the arm on sb. put the change on sb.