点击下方单词,选择对的这个单词
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名词
1. 间谍行为;谍报活动Espionage is the activity of finding out the political, military, or industrial secrets of your enemies or rivals by using spies.
1. the systematic use of spies to get military or political secrets
多通过句子记忆单词,而不是单独死记硬背。