preempt [prɪ'empt]

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vt.先发制人；先取

acquire by preemption

We arrived early at the theatre so as to preempt the front seats. 我们早早来到剧院，以便捷足先登占到前排座位。
He preempted any decision to sack him. 他预先阻止了所有解雇他的决定。