espionage /ˈɛspijəˌnɑːʒ/ noun Learner's definition of ESPIONAGE
[noncount]
: the things that are done to find out secrets from enemies or competitors : the activity of spying间谍行为；谍报活动 -
He was charged with several counts of espionage.他被控几起间谍活动罪状。
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international/industrial espionage国际/产业间谍活动
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an espionage novel/thriller谍战小说/电影