怎么增加僵尸被伤害的声音？

       // Zombie dies
       if (equal(sample[7], "die", 3) || equal(sample[7], "dea", 3))
       {
              engfunc(EngFunc_EmitSound, id, channel, zombie_die[random_num(0, sizeof zombie_die - 1)], volume, attn, flags, pitch)
              return FMRES_SUPERCEDE;
       }