先发制人: strike first to gain the initiative; beat to the draw; dominate the enemy by striking first; fire the first shot; gain an advantage over a competitor [the enemy] without his knowing; gain
The bush administration believes that the us is entitled to take preemptive action against imminent nuclear threats or against terrorists with big plans 布什政府相信，美国政府有权采取先发制人的行动，抵御迫在眉睫的核威胁或是有着野心勃勃计划的恐怖主义分子。
