They set up purifying systems in places where the water was not potable.他们在许多水质不适合饮用的地方建立了净化系统。Changing iron into steel is a process of purifying the iron.把铁炼成钢是铁的精炼过程.The extra step would increase the margin of safety b...
She could not see herself in the role of ministering angel .她想象不出自己成为一名救死扶伤的天使会是什么样。" Do you indeed, my ministering angel?" 你真的想回去了, 我的救护天使?His days are spent travelling by boat ministering to his parish.他的日子是在来回划船去管理教区中...