The hindquarter angulation balances that of the forequarters.

后躯的角度要和前驱的角度平衡。

This Can be accomplished by lifting the hindquarter with the tail, piffling the foreleg, and applying a pumping motion with a foot in the flank.

抓起牛尾巴以抬高它的后部，拉起前腿，用脚踩住牛的侧腹做打气的动作。