Challenge: Xiangqi Breakdown: Red Chariot 'Attacks' but Suddenly Countered - Defensive Secrets for the Pawn - Can you solve it?

The Red Chariot on file 7, rank 5 'thrusts' into the Black Pawn on file 5, rank 7 but is unexpectedly 'shot across' by the Black Cannon on file 2, rank 8. A student asks the master: 'Why let the chariot charge into the pawn like that?' The master laughs and replies: 'That’s the secret of playing with sacrificed pieces!'