mastermind

1. V-T If you mastermind a difficult or complicated activity, you plan it in detail and then make sure that it happens successfully. 策划

There are many theories as to who masterminded the attacks. 关于谁策划了这些攻击，有许多的猜测。

2. N-COUNT The mastermind behind a difficult or complicated plan, often a criminal one, is the person who is responsible for planning and organizing it. 幕后操纵者

He was the mastermind behind the plan to acquire the explosives. 他是获取炸药计划的幕后操纵者。