名词
中文翻译：间谍
同义词：
['spy', 'spies', 'secret agent']
例句：
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1. The spy was able to infiltrate the enemy's headquarters without being detected.
这个间谍成功地渗透到了敌人的总部，没有被察觉。
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2. The spy revealed the location of the enemy's hidden weapons cache.
间谍透露了敌人隐藏武器仓库的位置。
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3. The spy had been working for years, gathering intelligence for their government.
这位间谍已经工作了很多年，为他们的政府收集情报。