Long premeditated keep on plotting for a long time a long-cherished plot has been deliberately planned over a long period of time have plotted for a long time
There has been an attempt on the President´s life.
杀害总统的企图蓄谋已久。
—— 给力词典精选It is unclear whether it is over some silly local muscle - flexing, or a deliberately engineered provocation.
目前尚不清楚这是一场无聊的区域性武力炫耀, 还是蓄谋已久的挑衅。
—— 给力词典精选Whether it´s by accident or by design, there´s not a thing we can do about it.
无论它是意外发生的还是蓄谋已久的, 对此我们都无能为力。
—— 给力词典精选