preemptive 或 pre-emp.tive
adj.（形容词）Of, relating to, or characteristic of preemption.先买（占）的：先买（占）的、关于先买（占）的或以先买（占）为特点的Having or granted by the right of preemption.有先买（占）权的或被授于先买（占）权的
Relating to or constituting a military strike made so as to gain the advantage when an enemy strike is believed to be imminent:先发制人的：关于或构成为了胜过将临的敌方攻击而进行的军事打击的：例句：a preemptive nuclear attack.先发制人的核袭击
Undertaken or initiated to deter or prevent an anticipated, usually unpleasant situation or occurrence:先发制人的：为延缓或阻止预期的，经常是不愉快的状况或事件而做出的或先做的：例句：The two companies organized a preemptive alliance against a possible takeover by another firm.这两个公司组成了先发制人的同盟以防备可能被另一个公司接管
Having or marked by the power to preempt or take precedence:优先的：有先占或优先权的或以先占或优先为特点的：例句：a preemptive business offer; preemptive authority.优先出卖；先买权
Games Relating to or being a bid in bridge that is unnecessarily high and is intended to prevent the opposing players from bidding.【游戏】 先发制人的，尽量叫大牌的：桥牌叫出高得没有必要的牌以阻止对手叫牌
【引伸】
preemp.tively
adv.（副词）
