espionage
n. 间谍行为,谍报活动
例句
Espionage is a capital offence in this country.
间谍活动在这个国家是死罪。
《柯林斯英汉双解大词典》
She may call it research; I call it industrial espionage.
她可以称之为研究,可我称它为产业情报刺探。
《牛津词典》
It was a crime of espionage and carried the death penalty.
那是间谍罪,处了死刑。