He shows complete indifference to others feelings.
他对别人的感受漠不关心。
How often did I tell you not to speak so loud?
我告诉你多少次不要讲话这么大声?
After switching on powerful arc lights, they saw great stalagmites -- some of them over forty feet high -- rising up like tree-trunks to meet the stalactites suspended from the roof.