cutting edge 在这句中啥意思?This growth has been driven by a revolution in microelectronics in the early 1960s,putting more than one transistor on a piece of semiconductor was considered cutting edge.
问题描述：
cutting edge 在这句中啥意思?
This growth has been driven by a revolution in microelectronics in the early 1960s,putting more than one transistor on a piece of semiconductor was considered cutting edge.
答
cutting edge:
本意：(刀片的)刃口, 刀刃
剪刃
切削刃
寓意：关键点，至关重要的。
答
划时代！
答
划时代的
十九世纪六十年代早期,微电子学的革命推动了它的发展,
能够在一片半导体上安装不只一个晶体管,这个发明被认为是划时代的.