學個詞 Learn A Word: 3399 preempt 搶先，先發(fā)制人

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今天我們要學的詞是 preempt.

preempt 的意思是搶先，先發(fā)制人。 Violence was largely averted in Portland, Oregon, where police established concrete barriers, closed streets and bridges to preempt clashes between anti-fascist groups and counter-protesters. 俄勒岡州波特蘭市警方為預先防范反法西斯團體和反抗議者之間發(fā)生沖突而設(shè)立水泥路障，封鎖街道和橋梁，基本上避免了暴力發(fā)生。

preempt 的形容詞形式是preemptive，較常用。The recent missile tests by North Korea show potential weapons that are designed to avoid any preemptive strikes that would destroy them on their launch pads, experts said. 專家表示，朝鮮最近進行的導彈試射展示了有可能避免任何將導彈摧毀在發(fā)射臺上的先發(fā)制人打擊而設(shè)計的武器。