Secret files reveal an Oxford spy ring.

【ring】秘密文件揭露牛津有个间谍网。

Woodhull himself was given an alias, Samuel  Culper, which gave the spy ring its name.

伍德哈尔本人被赋予了一个化名，塞缪尔·库尔珀，间谍团伙由此得名。

The material provides powerful evidence that Julius was indeed the linchpin of a prolific spy ring that gave Joseph Stalin's Soviet Union a valuable trove of military secrets.

这些材料提供了强有力的证据，证明朱利叶斯确实是一个活跃的间谍网的关键人物，这个间谍网为约瑟夫·斯大林领导的苏联提供了宝贵的军事机密。

Brewster believed he could help Washington gather  intelligence in New York using his whaling boats, and the now-experienced Tallmadge was sent  to help Brewster create a new spy ring.

布鲁斯特相信他可以使用他的捕鲸船帮助华盛顿在纽约收集情报，现在经验丰富的塔尔米奇被派去帮助布鲁斯特创建一个新的间谍网络。