Punching bag
01
沙袋, 拳击袋
a hanging stuffed bag that is often used for practicing punching and striking techniques in boxing and martial arts
例子
The boxer spent hours training with the punching bag to perfect his jabs and hooks.
拳击手花了数小时与沙袋一起训练，以完善他的刺拳和勾拳。
Hitting the punching bag is a great way to release stress and improve upper body strength.
击打沙袋是释放压力和增强上半身力量的好方法。
02
沙袋, 出气筒
a person on whom another person vents their anger
