pre-emptive
adj
of or concerning pre-emption 優(yōu)先購買的; 預(yù)先采取行動(dòng)的
a pre-emptive right to buy 優(yōu)先購買權(quán)
pre-emptive purchase 優(yōu)先購買
a pre-emptive attack/strike, ie one designed to forestall a likely enemy attack 先發(fā)制人的攻擊[打擊]
a pre-emptive bid, ie (in bridge) one made to prevent further bidding 先發(fā)制人的叫牌(用以阻止對方叫牌).