The artillery could only attenuate somewhat the force of the attack.炮兵部队仅能降低一些攻击的力度。Earplugs will attenuate the loud sounds of the machinery.耳塞会减小机器的噪声。You could never eliminate risk, but preparation and training could attenuate it.风险不可能完全消除,但可以通过防范和培训来降低。The symptoms attenuate slowly over time.症状随时间逐渐减轻。