- 重点词汇
- concerningprep.关于,涉及;
- operationn.活动;企业;手术;使用;运算;运行;军事行动;
- assignmentn.作业,任务;分配;
- defencen.防御;国防;辩护(律师);答辩;防守(队员);卫冕赛;
- nationaladj.国家的;民族的;国有的;
- emergencyn.突发事件;紧急情况
- 相关例句
Target recognition is an important research focus of aerial defence in modern times.
空中目标识别是现代防空作战的重要研究内容.
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People used to build strong walls round their towns as a defense against enemies.
人们从前在城镇四周筑坚固城墙以防御敌人.
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The best defense against poisoning is developing a cryptographically secure cookie.
从美式橄榄球中可以得到个启示,记住:最好的防守是进攻.
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Tito was not much surprised at this mode of defense against visitors thunder.
蒂托毫不奇怪地要用这种方式来防卫来访者的敲门声.
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