n.操作，经营；手术；[数]运算；作用 变形： 复数：operations 双语释义：n.(名词)[U]操作,运转,经营 the condition or process of working[C]手术 the cutting of the body in order to set right or remove a diseased part[C](军事)行动,活动 a planned, especially military movement[C]运算 a process used to get on