这种药膏是一种很好的缓解肌肉酸痛的止痛剂。

This ointment is an excellent ___reliever for muscle soreness.

在比赛最后阶段，教练派上了一名替补投手。

The coach brought in a ___reliever for the final innings of the game.

热水澡是缓解压力的好方法。

A hot bath is a great ___relief for stress.